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    • 专利摘要:
    A METHOD FOR OBTAINING ANTIBIOTIC-MAKGOLID of the general formula CH3 HE N-CH3 CH3 (L i UN with dH sources of nitrogen and carbon and mineral salts, isolate the target product, where Q CHO and, if necessary, convert it to chemical IMC by reduction to a compound, 01 where GJ -CHgCffl and / or esterification conversion into ester 1 ester. KnM QO
    公开号:SU1151218A3
    申请号:SU813345998
    申请日:1981-06-09
    公开日:1985-04-15
    发明作者:Генри Балтц Ричард；Мериел Вилд Джен；Томас Сено Юджин；Эндрю Керст Герберт
    申请人:Эли Лилли Энд Компани (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the microbiological industry and concerns the production of ait) iotics macrolide with a macrocyclic lactonium ring.
    The known method poluchennym antibiotic ty-; Vine with possessing antimicrobial antigene spectrum 1}.
    However, the known antibiotic has a low spectrum of antimicrobial action.
    The aim of the invention is to obtain an antibiotic that suppresses t-organisation, pathogenic for animals, in particular, has an activity against gramophobia of microorganisms and mycoplasmus.
    This goal is achieved by creating a method for producing an antibiotic macrolide of general form; where Q is CHO, yush CHgOH, or atsklny complex of Hbdi sulfir, with this, when in position 3 in the molecule O-acetyl group, then in position 4 there is no 0-isovalerianor group, c.  The KOTOpiSM strain of Streptomyces fradiae NRRL 12170 is grown in deep destructive conditions in a nutrient medium containing sources of nitrogen and carbon and mineral salts isolate the target product, where Q-CHO and, if necessary, is converted by chemical reduction into the compound, where and / or translated by esterification into the acyl 1SH1 ester.  For carrying out the method, the Streptomyces frac Jiae strain, which is stored in the NRRL collection under number 12170 and is obtained by mutagenesis, is used.  Cultural morphological features.  Sporopose-RA, spore chains; 10, the spore surface is smooth, the shape is spherical. , Broth with tryptone yeast extract N 2 (JSP).  ; Growth is good, the reverse side of the xselta colonies, the six mpelium is well developed,. Belsh soluble pigment is missing.  3SP N 3.  Growth is bad, inverse CTOpoira colonies are white, aerial mycelium - traces of soluble pigment are absent.  OSP N 4:  GROWTH is good, the reverse side of the colonies is yellow, aerial mycelium is poorly developed, there is no soluble pigment.  Л8Р N 5.  Growth is good, the reverse side of the colonies is yellow, airborne mycelium and soluble pigment are absent.  3SP N 7.  The growth is good, the reverse side of the colonies is yellow, the aerial mycelium is well developed, the soluble pigment is light brown, gray.  Sa malate  Growth is bad, the reverse side of the colonies is white, aerial mycelium and a soluble pigment are absent.  Wednesday Capek. The growth is significant, the reverse side of the colonies is yellow, aerial mycelium - traces, soluble 1P1gment is absent.  Tomato paste - oats for flour.  Growth .  good, the reverse side of the colonies is yellow.  Physiologist o-biochemical properties.  Absorbs glucose, t-arabinose, D-fructose; Zu, D-, galactose, yzo-inosium, D-mannitol, sugar, D-xylose, D-rhamnose.   absorbs raffinose, salicin.  Zhelatin dilutes, milks do not ferment, starch hydrolyzes, catalase is positive, resistance to sodium chloride is 4%, phosphatase is positive, urease is negative.  The pH range of growth is 6.1-7.8.  Temperature range of growth 10-30 C.  Sensitivity to antibiotics, fenicol chlora, cefaloridin, tetrash wedge, nancampin - 30 µg, streptomycin 10 µg - sensitive, weakly sensitive - erythromychitis 15 µg, polymyxia B - 300 units: insensitive to lincalicin.  Antagonistic properties.  It has an antimicrobial effect on it. antibiotic 23 demy ziltyposin (DMT) and its controversy. The following examples are used.  Example 1  LMT fermentation in a shake flask.  Lyophilized tablets of Streptomyces fradiae NRRL 12170 are dispersed in J -2 ml of sterilized water.  A part of this solution (0.5 ml) is used to inoculate a plant medium (150 ml) with the following composition,%: Grain tincture1.0 Yeast extract 0.5 Soybean meal 0.5 Carbonate 0.3 Soybean oil (unrefined) 0.45 Desalinated water97,25 On the other hand, plant culture Streptbmyces fradiae NRRL 12170 ,. .  storing in 1 ml volumes in liquid nitrogen is quickly thawed and used to inoculate the plant medium.  The inoculated cultured medium is kept in a 500 ml Erlenmeyer stake at 29 ° C. and for 48 hours it is kept in a closed thread at 300 rpm.  This incubated plant medium (0.5 ml) is used to inoculate 7 ml of production medium with the following composition,%; Beet treacle2.0 Grain flour1.5 Fishmeal0.9 Wheat gluten0.9 Sodium chloride 0.1 (NHi,) tHro4 0.04 Calcium carbonate d Soybean oil (crude) 3,0 rbessoline1n water91,36 Inoculated enzymatic medium is incubated in 50 ml bottles for about 6 days in a closed tr bitch making 300 rpm.  Fermentation of DMT in fermenters.  To obtain a large volume of inoculum, take 1200 ml of the incubated medium and shake 946.4 l (250 gallons) of the second-stage plant medium, which has the following composition,%: 84 Grain tincture1.0 (seed oil, 0.5% yeast extract, 5 Carbopath Calcium 0.3 Soybean Oil (Untreated) 0.5 Linetin (Untreated) 0.015 Water 97.185 pH of the environment REACH / w 8.5 by adding 51 gn solution of caustic soda.  This plant medium of the second stage is ground in a 1325 liter fermenter (350 gallons for about 48 hours at 28 ° C with moderate aeration and mixing.  Prepared incubated medium of the second Stadel (545 l, t.  e.  144 gal. 3785.4 liters (1000 gallons) of sterile enzyme agapia, including the following composition,%: Fish meal, 0.875 Grain flour, 1.5 Grains gluten, 0.875 Calcate carbonate, 0.2 sodium chloride 0.1 (N), 04 Beet molasses2. 0 Soybean oil (crude) 3.0 Lepitin0.09 Water91.32 The pH is adjusted to 7.2 by the addition of a 50% sodium hydroxide solution.  Inoculating the production medium is fermented in a 6057 liter fermenter (1600 gallons) for 8-9 days at 28 C.  The broadside medium is aerated with sterile air, maintaining a concentration of dissolved oxygen in the range of about 30-50%, and is stirred with standard agitators with a rotation speed of 25. 0 rpm  Example 2 .  Distribution DMT.  The culture liquid (3800 l) obtained in accordance with example 1 was filtered using fine powder.  The mycelial cake is washed with water, and this water wash is added to the filtrate.  The pH of the filtrate was adjusted to 9.2 using; .  0% caustic soda solution. (0.5 p) the filtrar is then extracted with 2000 liter of titanium acetate.  450 g of demineralized water and 6.4 kg of monobasic sodium oshphate are added to the ethyl acetate extract and the resulting solution is mixed.  The pH of the solution is adjusted in the range from 6.0 to 4.35 using a solution of osphonic acid (3300 ml, 2 hours of water for 1 hour of phosphoric acid).  The aqueous phase is separated.  The pH of the enriched aqueous phase was adjusted to 6.5 using 5W (} ibm sodium hydroxide solution (700 ml).  The resulting solution is concentrated to a volume of approximately 225 liters in vacuo.  The pI of this KOHueHtpHpoBaHHOro solution brings rt to 9.2, by adding 10% aqueous caustic soda - (26l). The resulting alkaline solution is incubated for eight hours.  The separated crystals are filtered off, washed with desalted water (50 l) and dried, yielding approximately 8.6 kg of product.  A part of the obtained product (3 kg | is subjected to recrystallization from a mixture of acetone - water and to obtain 2.07 kg DMF of free osnauka gfimerno.  132 ° C DMT softens i at about 150 ° C.  and the MelNO melts to about 1%. It has been established that DMT has approximately the following composition,%: carbon 61, hydrogen 8.5, nitrogen 2, oxygen 28, the following empirical formula: and also molecular weight about 742 (according to mass spectrometry) .  Absorption maxima of arrival for the following | a: Stokes (cm): 3634 (very small) 3559 (with a ledge), 3423 (ishroky), 2955 (iptensive), 2907 (intensive), 1710 (intensive), 1676 (with Ledge ), 1588 (intensive), 1447 (with a shoulder), 1396 (with a shoulder), 1359 (small), 1309 (very small 1178 (with a shoulder), 1156 (intensive), 1111 (with a shoulder), 1073 (with a shoulder) , 1048 (intense), 1013 (with a ledge), 984 (with a stop), 926 (very small), 898 (very, small) and 833 (very large).  The VF absorption spectrum of DMT in neutral ethanol exhibits a maximum absorption at 283 nm (22296: - E /.   300.9).  The DMT-free base has the following specific rotation; ot Itf -53.5 (with 1, CH3-OH Electrometric titration of DMT in 66% dimethylformamide with water indicates the presence of a titrated group with a pK of approximately 7.25.  DMT-base is soluble in the genus and in the majority of the polar organically.  solvents such as acetone, methanol,.  ethanol, dimethylformamd, chloroform, dimethyl sulfoxide.  The DMT-salt-adducts of the acid are more soluble in water than the DMT-base.  . Example 3  Getting OMT (5-0-mikominostilitonolida).  DMT, prepared in accordance with the procedure of Example 2, was dissolved in dilute hydrochloric acid (hydrochloric acid was added to water to a pH of 1.0), the resulting solution was incubated for 24 hours at room temperature and then adjusted to pH 9 , 0 by adding caustic soda.  This alkaline solution is extracted with ethyl acetate, d 1 chloromethane sludge. and chloroform.  The extract is dried under vacuum and receive.  Example 4  Getting OMT.  DMT (500 g) prepared in accordance with Example 2 is ground in a mortar and added to desalted water (1.5 L); The pH is maintained between 3.5 and 7.5, if necessary by the addition of sulfuric acid.  Chere: From 30 M1sh, all the DMT is dissolved, the pH of the solution is then adjusted to 1.4 and the solution is kept for 42 hours at.  After standard treatment, 366 g of OMT are obtained, the identity of which was confirmed.  comparison with thin-layer chromatography of a known sample.  Example 5.  Preparation of dihydro-DMT (20-dihydro-23-demyciposylthylosin).  50 mg of DMT prepared in accordance with Example 2 is dissolved in a water solution of isoprosovogo alcohol (about 40%, 25 ml).  In a 30% aqueous solution of isopropyl alcohol, 20 mg of borohydrio is dissolved; yes rub.  1 ml of borohydride solution.  sodium is added to the solution containing.  DD1T.  The resulting mixture is stirred for 5 minutes, the pH is adjusted to 7.5 by adding phosphoric acid, and then concentrated in vacuo to remove isopropyl alcohol.  - Then water is added to the yogi / scientist aqueous concentrate to a volume of 25 ml, and then 50 ml of chloroform is added.  pH: ; the aqueous phase is adjusted to 7.5.  After extraction, chloroform is separated and evaporated in vacuo to give dihydro-DMT.  Example 6  Preparation of dihydro-OMT (20-dihydro-5-0-mikalinoethylti lonolide).  Dihydro-DMT, obtained in accordance with example 5, is treated by the method described in example 3, and receive dihydroOMT.  Example 7  . Alternative receiving OMT.  DMT is obtained from DMT by treating DMT in an enzymatic broth in which it was prepared in the presence of a weak acid in accordance with Example 3.  The selection of OMT is reached. Take a procedure similar to that described for DMT in Example 2.  Example 8  2-0-Lethyl-DMT.  Wg DMT (13.5 mmol) is dissolved in.  260 ml of acetone and treat jTccycHbiM. with anhydride (1.6 ml, 5.7 mmol), added dropwise with stirring at room temperature.  After stirring for 7 to 18 hours, the solvent is diluted under reduced pressure.  The residue is dissolved in 200 ml of ethyl acetate and extracted with saturated sodium bicarbonate solution (2 x 200 ml).  The organic solution is dried over sodium sulfate, filtered and evaporated.  The residue is dissolved. in a small volume of ethyl acetate, loaded onto a silica gel column (Waters Prep 500) and ethyl acetate (4l) is eluted.  The fractions containing the desired product were identified by thin layer chromatography, combined and evaporated to dryness to give 6.5 g (61%) of 2-o-acetyl-DMT.  Example 9  2-0-Propionyl-DMT.  In a similar way, 6.0 g (8.1 mmol) of DMT in 120 ml of acetone is treated with 1.2 ml (9.2 mmol) of anionic acid anionic acid.  After treatment and chromatography, 3.7 g (57%) of 2 -O-propionyl-DMT are isolated.  Example 10  2, 23-Di-O-acetyl-DM 3 g of DMT (4.05 mmol) are dissolved in 90 ml of methylene chloride and 7.8 ml of hafidine and 1.4 ml (13.7 mmol) of acetic anhydride are added and added drip when stirred at the color temperature.  After stirring for about 17 hours, the solution is diluted with 15 mp of toluene and the solvents are evaporated under reduced pressure.  The residue is dissolved in a small volume with ethyl acetate, loaded onto a silica gel column.  (Waters Prep 500) and eluted with four liters of ethyl acetate to give 2.1 g of crude product.  This material is dissolved in a minimum volume of toluene, loaded onto a silica gel chromatography column (300 ml) and eluted with (a) 3: 1 toluene to ethyl acetate (300 ml), (b) 5: 4 toluene to ethyl acetate (600 ml) and ( c) 1: 1 toluene to ethladetate.  (1000 ml).  The fractions containing the desired product were analyzed in detail: by chromatography, combined and evaporated to dryness to obtain 1.6 g (64%) 2, 23 with dihydro-0-acetyl-DMT.  Ii.  2,23-Di-O-propionyl.  Example 1Shch1.  In 90 ml.  methylene chloride and 7.8 ml of pyride are dissolved in 3 t of DMT (4.05 mmol) and treated with 1.8 ml (13.8 mmol) of propionic anhydride added dropwise with stirring at room temperature.  After stirring overnight, 15 ml of toluene are added, and the solution is evaporated to dryness under reduced pressure. The residue is dissolved in 20 ml of toluene, loaded onto a silica gel chromatography column (E. Merck 60,500 ppm) and elute (a) 3: 1 toluene to ethyl acetate (300 ml).  18 (b) 5: 4 toluene to ethyl acetate (300 ml) and (c) 1: 1 toluene to ethyl acetate (1000 ml).  2.5 g (72%) of 2, 23-di-O-propionyl-DMT are obtained.  P p and measures 12.  2-O-Acetyl-23-O-propionyl-DMT.  In 180 MP of methylene chloride in 6 ml of pyridine 6 g (7.7 mmol) of 2 -O-; are dissolved.  acetyl-DMT and treated with 1.2 ml (9.2 mmol) of proppun anhydride.  acid added dropwise at room temperature. .  temgerature  After stirring for 17 hours, the solution was diluted with 300 ml of toluene and evaporated to dryness under reduced pressure.  The residue is dissolved in toluene and extracted with a sodium bicarbonate solution.  The toluene layer is dried over sulfate.  sodium, filtered and scrubbed.  The residue is dissolved in a small volume of toluene, loaded.  Chromatography is carried out on a silica gel column (300 ml) filled with toluol ethyl acetate (1: 1) and eluted with one аз O 1 l liter of entrained solvent.  The fractions containing the desired product are identified by thin layer chromatography, combined with 1, evaporated under reduced pressure, and 4.5 g (70%) of 2-0-acetate-23-0-Pro-1 PIONIL-D are obtained. Mt  Example 13  2-0-Propio1 ™ l-23-0-acetyl-DMT.  Analogously treated with 2 -Or-propiopil-DMT (1.5 g, 2 mmol) in methylene chloride (45 ml) and 3.9 ml of pyridine with 0.3 ml (2.9 mmol of acetic anhydride).  After chromatography.  Splicagel (Voters Prep.  500) isolated 0.81 g (51%).  2-0-Proxy 23-O-acetyl-DMT.  Example 14  2-0-Acetyl-23-0-phenylacetyl-DMT.  2-O-Acetyl-DMT (26.5 g, 3.5 mmol) is dissolved in 75 ml of methylene chloride and 0.8 ml of pyridine and treated with a solution of 0.56 ml (3.5 mmol) of fenptylacetyl chloride and 13 ml of chloride methylene, added in apl with stirring at room temperature.  After 1.5 hours, the mixture is treated with an optional amount of phenylacetyl; ida (0.56 ml) in methylene chloride (13 millimeters).  the original material was empty for another 3.5 hours (consumed by thin-layer chromatography).  Then the solution was evaporated under reduced pressure, the residue was dissolved in methylene chloride and extracted with a saturated solution of sodium bicarbonate.  The organic layer is dried over.  sulphate nati, filtered and dry. .  The residue is dissolved in toluene and a chromatograph.  t on silica gel column (Waters Pren 500),: kggra | -ir) (this is done at linear degrees. He toluene (4 l) and ethyl acetate (4 l) with co-fusible 1: 1.  Frakshsh, containing a swaddled product, combined and evaporated, obtaining 1.1 seconds (. 15%) 2-0-Acethyl-2: 0-phenylaucrJl. t-dmg.  0.86 g (24%) of 2 -0-acetyl-23,4-d, and-0-phenyl-11-methyl-DMT were also obtained from P1 “for 11113 of their fractions.  Example 15  2-0-Acetip-23-G1p011ioshsh-DMT (1.6 g, 9 mmol) is dissolved in 9.  methanol (80 ml) and stirred at room temperature for 42 hours.  The solution is evaporated to dryness under reduced pressure.  The residue is dissolved in a small volume of toluene, loaded onto a silica gel chromatography column (E.  Merck 60, 2. 00 ml) and eluted with 2 l of toluene-ethyl acetate (1: 1). The fractions containing the desired product are identified by thin layer chromatography, combined and evaporated at Tyunin pressure, yielding 1.2 g (79%) 23-0- propionyl-DMT.  Example 16  23-0-Phenylacetyl-DMT.  0.6 g (0.67 mmol) of 2-0-acetyl-23-0-phenylacetyl-DMT plant) 5Or in an 80 ohm aqueous solution (50 ml) and boil vigorously under reflux for 4, 5 hours  The solution is cooled to room temperature and evaporated to dryness under reduced pressure of the scientific research institute, yielding 0.39 g (68%) of 23-0-phenylacetyl-DMT.  Example 17.  23,4-di-O-Phenylacetyl-DMT.  2 - O-Acetyl-23,4-di-O-phenylacetyl-DMT (0.36 g, 0.36 mmol) is dissolved in 80% aqueous methanol (30 ml) and refluxed in a for 4.5 hours  The solution is cooled to room temperature and at reduced pressure, evaporate to dryness at 0.29 g (84%) of 23.4-di-O-phenanethylet-DMT.  Example 18  2 -O-Acetyl-3,23,4 -tri-0-propionyl-DMT.  2-0-Aietil-DMT (2 g, 2.6 mmol) is dissolved in 40 ml of acetone and 8 ml of pyridine and treated with a solution of 40 ml of Lropionic anhydride in 20 ml of acetone, by adding it. dropwise with stirring and room temperature.  Stirring is carried out for 5 days, the mixture is evaporated under reduced pressure.  The residual mass was dissolved in ethyl acetate and extracted with saturated sodium bicarbonate solution.  The organic layer was dried over sodium sulfate, filtered, and evaporated.  The residue was dissolved in a small volume of toluene and chromatographed on a silica gel (Waters, Prep 500).  Column zlsirun) t with a linear gradient of toluene (4 l) and:) tilolteta (4 l).  The fractions containing the desired product are combined, evaporated and 1.4 g (57%) of 2-0-anil-3,23,4-0- are obtained.  propionyl-DMT.  Example 19  3.23.4 -Tri-0-nropionyl-DMT.  2: 0-Acegsch-3,2L, 4 -tri-O-propionyl-DMT (0.7 g, Oi74 mmol) is dissolved in 80% aqueous methanol (55 ml) and refluxed for 5 hours  The solution is cooled and then evaporated to water under reduced pressure.  The product is extracted with methylene chloride, the organic layer is separated, dried over sodium sulfate, filtered and evaporated under reduced pressure to dryness, to obtain 0.38 g (56%) of 3.23.4 -tri-0-propionyl-DMT.  Example 20  2,4, 23-Trie-0-acetyl-DMT) 0.0 g DMT (13.5 mmol) is dissolved in 150 ml pyridine and treated with 5.8 ml (60.7 mmol) acetic anhydride under stirring at room temperature .  After stirring overnight, the solvent is evaporated under pressure.  The residual oil is dissolved in dichloromethane and extracted with saturated sodium bicarbonate; the organic layer is separated, dried over sodium sulfate, filtered and evaporated under reduced pressure.  The residual material is chromatographed on silica gel (Water Prep, 500), eluted with a linear gradient of a mixture of toluene (4 L) and ethyl acetate and ethyl acetate (4 L) at a ratio of 3: 1.  The fractions containing the desired product were identified by thin layer chromatography, combined and evaporated under reduced pressure, yielding 4.5 g of 2.4-23-tri-O-acetyl-DMT.  Example 21  2 - O-Acetyl-23-0-fepoxy-acetyl-DMT.  2-0-Acetyl-DMT (2.75 g, 3.5 mmol) is dissolved in 75 ml of dichloromethane and 0.8 ml of pyridine and treated with a solution of 1.2 ppm (88 mmol) of phenoxyacetyl chloride in 25 ml of dichloromethane, adding them drop by stirring at room temperature.   .  After one hour, the reaction mixture was poured into a saturated solution of sodium bicarbonate (200 ml) and the organic layer was separated, dried over sodium sulfate, filtered and evaporated under reduced pressure.  The residual solid foam is loaded onto a silica gel chromatography column, the products are separated and eluted using toluene ethylacetate (1: 1) as a solvent.  one.  1.5 g of 2 -O-acetyl-23-O-phenoxyacetyl-DMT. together with 0.55 g of 2 -0-acetyl-23, f-di-0-phenoxy-acetyl-DMT and 0.03 g of 2 -0-acetic-3,23-ai-O-phenoxyacetyl-DMT.
    P p and e p 22. 2-0-Acetyl-23-0- (napachlorfenchlacetyl) - DMT.
    P-chlorophenylacetic acid (4.3 g, 25 mmol) and 1-hydroxybenzotriazole (5.4 g, 25 mmop) are dissolved in 150 ml of tetrahydrofuran. The solution is cooled in an ice bath and treated with 5.2 g (25.3 mmol) of dicyclohexylcarbodimide. The reaction mixture was stirred at 0 ° C for 3 hours and then stirred in the refrigerator overnight. The mixture is filtered, and the filtrate is evaporated under reduced pressure. The residue was dissolved in acetone (75 ml), filtered and treated with 10 g (12.8 mmol) of 2-0-acetyl-DMT and 0.87 g (12.8 mmol) of imidazole. Acetone is added to a volume of 1235 mp and then 87 ml (12.8 mmol) of triztilamine are added. After stirring for 20 hours at room temperature, the solvent is evaporated off under reduced pressure, the residue is taken up in Kortoraiy with silica gel and solvent, under a toluene-ethyl acetate (4: 1) gradient and ethyl acetate alone. 4.75 g of 2-0-acetyl23-0- (p-chlorophenylacetyl) -DMT are obtained.
    PRI me R 23. 2 -O-Acetyl-4 -0-proPIO1ShL-DMT ..
    2-0-Acetyl-DMT (1.0 g, 1.3 mmol) is dissolved in 30 ml of pyridine and the solution is treated with 0.6 MP (4.6 mmol) of propiopic anhydride, added dropwise with stirring and at room temperature . After 20 hours, 3.0 ml (23 mmol) of propionic anhydride are added and the reaction mass of pen. stir for the next 26. h at KONtaaTHOu temperature. The mixture is diluted with 30 ml of toluene and the solvents are evaporated off under reduced pressure. The residual oil is dissolved in 50 ml of dichloromethane and extracted with a saturated sodium bicarbonate solution, filtered and the mixture is triturated. The residue is loaded into a column with a silnagel (Waters Prep 500) and zlyuyut with the linear tradition of toluene (4 l) and ethylene ester (4 l) .. 305 mg of 2-0-acetyl-ZLL- are eluted by elute. -di-0-proshgonil-DMT, and then 286 mg 2 -0-ace0, tyl-4 -0-propionyl-DMT.
    The proposed method allows to obtain, as well as, a 1-biotics, has a certain spectrum of antimicrobial action, and can be used for the treatment of agricultural and other animals;
    权利要求:
    Claims (3)
    [1]
    METHOD FOR PRODUCING AN ANTIBIOTIC-MACROLIDE of the general formula no-sn 2 CHj-CHz
    SNE
    -0 he
    CH3 OH where Q is CHO, or CH 2 OH, or an acyl ester, when in position
    [2]
    3 in the molecule is a 0-acetyl group then in position
    [3]
    4, the 0-isovalerian group is absent, consisting in the fact that the strain Streptomyces f radiae NhRL 12170 is grown under deep aerobic conditions in a nutrient medium containing nitrogen and carbon sources and mineral salts, the desired product is isolated, where Q CHO and, if necessary, transfer it to chemical reduction to a compound wherein Q-CH 2 OH and / nli are converted by. Esterification into an acyl ester.
    1151
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    PT73165A|1981-07-01|
    DD159644A5|1983-03-23|
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    法律状态:
    优先权:
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    US06/156,854|US4321361A|1980-06-12|1980-06-12|Demycinosyltylosin and process for its production|
    US06/156,855|US4321362A|1980-06-12|1980-06-12|Detylosin and process for its production|
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