![]() Method of producing antracyclin glycozides
专利摘要:
Anthracycline glycosides of the general formula (I): <CHEM> wherein R1 represents a hydrogen atom or a hydroxyl group, one of R2 and R3 represents a hydrogen atom and the other of R2 and R3 represents a hydrogen atom or a hydroxyl group; and pharmaceutically acceptable acid addition salts thereof are antitumor agents. These glycosides may be prepared from a daunomycinone derivative of formula (II): <CHEM> in which the 4-amino group is protected. 4-Demethoxy-4-amino-daunomycinone (II) and an earlier intermediate in its preparation, 4-demethoxy-4-amino-7-deoxy-daunomycinone (IX), can be diazotised followed by mild reduction to form 4-demethoxy-daunomycinone or 4-demethoxy-7-deoxy-daunomycinone respectively. 4-Demethoxy-daunomycinone can be converted into another antitumor anthracycline glycoside, 4-demethoxy-daunorubicin. 公开号:SU1614764A3 申请号:SU884355593 申请日:1988-04-20 公开日:1990-12-15 发明作者:Карузо Микеле;Суарато Антонио;Анджелуччи Франческо;Аркамоне Федерико 申请人:Фармиталиа Карло Эрба С.Р.Л. (Фирма); IPC主号:
专利说明:
This invention relates to a process for the preparation of anthracycline glycosides of the general formula ABOUT sns-oh / s / NH HE and- I) ten 15 aqueous 4-dimethyl-4-0-sulphonate, Another 0.3 g of the product is isolated by purification of a 41% solution on chromatore-Aic; a column using a mixture of toluene and acetone as eluent. Yield 80%. those on Kieselgel F254 (Merck) using a mixture of toluene and acetone (9: 1 by volume). Rf 0.26. Zero mass spectrometry (m) 526. UFDmax (MeON): 524, 490 named. H NMR (200 MHz, CDCl 3), f: 13.43, 13.36, (s, 2H, 11-OH, 6-OH); 8.38 (dd, J 1.3, 779 Hz, 1H, 1-H); 8.02 (m, 2H, OSO F); .7,80 (dd, J having antitumor activity. The purpose of the invention is to develop a method for obtaining a new anthracycline glycoside with advantages in biological; activity, II p and mep 1, 4-Dimethyl-7-deoxydounomycinone, 1.5 g of 4-dimethyldaunomycinone diluted in a mixture of 100 ml of dioxane and 100 ml of ethanol are heated in the presence of 0.3 g of 5% Pd / BaSOSO at room temperature for 3 hours. After filtration, the solvent is removed in vacuo and 4- Demethoxy-7-deoxy-dunomycinon was isolated in almost quantitative yield, those on Kieselgel F254 (Merck) using a mixture of toluene and acetone (9: 1 by volume), Rf 0.30, Pr im e p 2. 4-Dimethyl-4-0- (4- -fluorobenzenesulfonyl) -7-deoxidaunone micinone To a stirred solution of 1.0 g of 4-dimethyl-7-deoxidaunomycinone in 200 ml of anhydrous methylene dichloride containing 0.52 ml of K, M-7 ml of isopropyl amine and a catalytic amount of 4-dimethylaminopyridine, at room temperature, add 0.52 g of 4- fluorobenzenesulfonyl chloride. After 30 minutes, the conversion is complete, and the reaction mixture is washed with 0.1N. hydrochloric acid and then water. The organic solution is dried over anhydrous sodium sulfate, the solvent is filtered and removed in vacuo. The crude product is placed in a small amount of toluene and crystallized to obtain 0.6 g of pure product. 20 7.9, 8.1 Hz, 1H, 2-H); 7.62 (dd, J 1.3, 8.1 Hz, 1H, 3-H); 7.23 (m 35 ) - 25 , OQ 2H, OS); 3.77 (s, 1H, 9-OH); 3.1-2.8 (m, 4H, 7-CH2, 10-CH); 2.38 (s, AH, AHFS,); 2.0-1.9 (m, 2H, 8-CH), Primerz, 4-demetoksi-4-benzsh1amino-7-dvoksidaunomitsinon, 0.8 g of the compound of Example 2 is dissolved in 100 ml of tetrahydrofuran and 0.5 ml of benzylamine is added. Receive- The mixture was extracted at 40 ° C for 36 hours with stirring, then 50 ml of 1N was added. aqueous hydrochloric acid and 100 ml of methylene dichloride. The organic phase is washed twice with water and dried over anhydrous sodium sulfate. The solvent is removed in vacuo. The crude product is chromatographed with instant evaporation using a mixture of toluene and acetone as the eluting solvent to give 0.48 g of 4-demethoxy-4-benzminamino-7-deoxidomicinone. Yield 69%. 45 of those on the plate Kieselgel F254 CMerck) using a mixture of toluene and acetone (9: 1 by volume), Rf 0.28, Field mass spectro1; etry (M) 457. I (MeOH): 548 nm. H NMR (200. MHz, eoe1z), (: 13.58 (s, 2H, 6-OH, 11-OH); 9.86 (t, J 5.7 Hz, 1H, NH-eH Ph); 7 , 64 (d, J 7.3 Hz, 1H, 1-H); 7.49 (dd, J 7.3, 8.3 Hz, 1H, 2-H); 7.4-7.2 (m , 5H,); 7.00 (d, J 8.3 Hz, 1H, - 3 W, 4.60 (d, J 5.7 Hz. 2H,); 3.1-2.9 (m, 4H, Yu-EH, five sixteen 7-chj |); 2.37 (s, 3N, COCIb); 2, 0-1.9 (m, 2H, 3-SNg). PR and MER 4. 4-Demetoxy-4-amino-7-deoxidaunomycinone, 0.45 g of 4-demethoxy-4-benzylamino-7-deoxidaunomycinone is dissolved in a mixture of 40 ml of ethanol, 20 ml of acetic acid and 0.4 ml of 37% aqueous hydrochloric acid; 0.2 g of Pd is added. / BaSO (catalyst) and the resulting mixture is hydrogenated at 1 atm for 1 hour at room temperature. After that, the catalyst is filtered off and the solvent is evaporated in vacuo. The crude product is chromatographed with instant evaporation using as eluent a mixture of toluene and acetone to obtain 0.2 g of 4-demethoxy-4-amino-7-deoxy daunicinone, 75% yield, TLC on a Kieselgel F254 plate (Merck) ; using a mixture of toluene and acetone (9: 1 by volume), Rf 0.17. Field mass spectrometry (M) 367, UV MW (MeOH): 536, 508 nm. H HI-IP (200 MHz, CO1H), (: 13.62, 13.55 (s, 2H, 11-OH, b-OH); 7.64 (d, J 7.7 Hz, 1-H) ; 7.46 (dd, J 7.7, 8.3 Hz, .1H, 2-H); 6.93 (d, J 8.3 Hz, 1H, 3-H); 6.8-7, 0 (broad signal), 2H, NH-i); 3.83 (s, 1H, 9-OH); 3.1-2.8 (m, 7-CHg, 10-SND); .2.37 (s, 3N, COCHj); 2.0-1.9 (m, 2H, 8-CHz). PRI me R 5, 4-Demetoxy-4-H-three fluoroacetamido-7-deoxidaunomycinone. About 2 g of 4-demethoxy-4-amino-7-deoxydaino chsionon is dissolved in 20 ml of anhydrous methylene dichloride, cooled to 0 ° C, and 0.3 ml of trifluoroacetic anhydride is added. After 10 minutes, sodium bicarbonate. The organic phase is washed twice with water and separated, dried over anhydrous sodium sulphate. The solvent is removed in vacuo to give a compound in quantitative yield, TLC on Kieselgel F254 (Merck) using a mixture of toluene and acetone (9: 1 by volume), / Rf 0.32; ; . PRI me R 6, 2-Demetoxy-4-K-trifluoroacetamide daodomycinone, A suspension of 0.2 g of the compound of Example 5 in 15 ml of benzene and 0.5 ml of ethylene glycol is refluxed for 4 hours in the presence of 0.015 g of p-toluenesulfonic acid, using a Dean-Stark apparatus, Obtained 7 ( Q j 0 five ABOUT five Q 5 . -46 the mixture is cooled, washed with aqueous sodium bicarbonate and water, then evaporated to dryness to obtain 0.2 g of the target ketal. The resulting ketal is dissolved in 125 ml of methyl dichloride with and treated with bromine (1.7 ml of a 0.6 M solution in methylene dichloride) in the presence of 0.25 g of 2,2-azobisisobutyronitrile. After 3 hours, the mixture was cooled and extracted with an aqueous solution of sodium bicarbonate, then washed twice with methylene dichloride and dissolved in vacuo. The residue is dissolved in 3 ml of trifluoroacetic acid and 0.3 ml of water at 0 ° C and stirred for 1 hour, then extracted with methylene dichloride. The organic phase is washed with aqueous sodium bicarbonate and water. The solvent is filtered off, dried over anhydrous sodium sulphate and evaporated in vacuo to give 0.1 g of 4-demethoxy-4-K-trifluoroacetamido-daunone-cycine. Yield 48%. TLC on a Kiselgel F254 (Merck) plate, using CH, 2.Cl2 and acetone (95: 5 by volume), Rf 0.23, Field mass spectrometry (M) 479, Example 7. 4-demetoksi-4-ami-nodaynopybitsin (1a), 0.08 g of 4-demethoxy-4-N-trifetropacetamide-dodomicinone prepared according to Example 6 is dissolved in anhydrous methylene dichloride, and the resulting solution is cooled to 5-10 ° C. A solution of 0.024 g of 1-chloro- N, 0-ditrifluoroacetyl daunazine prepared by a known method in diethyl ether, and a solution of 0.150 g of silver trifluoromethanesulfonate in methylene dichloride with vigorous stirring. After 5 minutes another 0.0 g of silver trifluoromeuansulfonate is added and after 5 minutes the reaction is quenched with collidine, The resulting mixture is filtered, washed with saturated aqueous sodium bicarbonate and water, dried and concentrated, in vacuo. The residue is chromatographed on a well with a silica gel column, eluting with methylene chloride to give 4-demethoxy-4-A-trifluoroacetamido-K-trifluoroacetyl daunorubicin (la). The compound obtained is dissolved in 10 ml of acetone and ten 15 22.5 133 167 200 0/10 0/10 1/10 55 Oh oh IT he 1614764 react in anhydrous methylene chloride with 4-fluorobenzenesulfo-1-chloride in the presence of N, N-diisopropylethylethylamine and the catalytic coherence of 4-dimers of aminopyridine, the resulting -demethoxy-4-4-fluorobenzene-sulfonyl-7-ioophoxidine-4-fluorobenzene-4-fluoromethanol-i-pyridine; IV Oh he is about; . ten l with 20 in tetrahydrofuran, is reacted with bepsylamine for 36 hours; the benzyl group is removed from the resulting 4-demethoxy-4-benzyl-25 amino-7-deoxy daunomycinone of formula V Oh he oh he using catalytic hydrogenation in the presence of 5% Pd / BaSO with 1 atm at room temperature for 1 h, using a mixture of ethanol and acetic acid and a catalytic amount of aqueous hydrochloric acid as solvent, protect the 4-amino group of the resulting 4-de etoxy-4-amino-7-deoxy daunomycinone of formula VI Oh oh NH20 OH ten by reaction with trifluoro- ,. acetic anhydride in anhydrous methylene dichloride, the 7-hydroxy group is reinserted into the obtained protected compound of formula VII Oh he state of he using the first protection of the 13-keto group by ketalization with ethylene glycol at the reflux temperature in the presence of p-toluenesulfonic acid, the interaction of the obtained ketap with bromine in methylene dichloride in the presence of: pc. 2,2-azobisisobutyronitrile for 3 hours and subsequent treatment with 7- the brominated intermediate compound with aqueous trifluoroacetic acid at 0 ° C for 1 h to obtain 4-demethoxy-4-H-trifluoroacetamide-to-daunomycinone of formula VIlI Oh oh thirty OH OH which is subjected to interaction with a protected halo.tssahar formula IX 35 0 five 0 R NHCOCF. OSOGS where Hal is a chlorine atom, in anhydrous methylene chloride at 5 - in the presence of silver trifluoromethanesulfonate to obtain 4-N-3, 4 -N, 0-anthracycline trifluoroacetyl - protected glycoside, from which after treatment at 3 hours O, 1 n. with aqueous sodium hydroxide, if necessary, isolate the compound of formula I as hydrochloride by treatment with methanolic hydrogen chloride.
权利要求:
Claims (2) [1] 1/10 9 1614764 I o by reaction at 0 ° C with trifluoro-., acetic anhydride in anhydrous methylene dichloride, re-introduce the 7-hydroxy group in the resulting protected compound of formula VII is reacted in anhydrous methylene chloride with 4-fluorobenzenesulfonyl chloride in the presence of Ν, Ν -diisopropylethylamine and a catalytic amount of 4-dimethyl-aminopyridine, obtained by h — demetoxy — 4 — ^ 4 — fluorobenzene — sulfonyl-7-deoxa daumucinocinocinone-7-deoxyquinone-aminocinidine. ten 15 20 in tetrahydrosrorane, is reacted with benzylamine at 40 ° C for 36 hours; the benelyl group is removed from the resulting 4-demethoxy-4-benzylamino-7-deoxy daunomycinone of formula V Oh he oh thirty 35 using catalytic hydrogenation in the presence of 5% RC / VAZO ^ at 1 atm, at room temperature for 1 h, using as a solvent a mixture of ethanol-acetic acid and a catalytic amount of 37% aqueous hydrochloric acid, protect the 4-amino group of the resulting 4-de - ^^ Methoxy-4-amino-7-deoxy-daunomycinone VI formula sock 3 yo oh he by first protecting the 13-keto group with ketalization with ethylene glycol at the reflux temperature in the presence of p-toluenesulfonic acid, reacting the obtained ketal at 40 * C with bromine ‘in methylene dichloride in the presence of '. ^ [2] 2.2 1 -azobisisobutyronitrile for 3 hours and then treating the 7-brominated intermediate with aqueous trifluoroacetic acid at 0 ° C for 1 hour to obtain 4-demethoxy-4-M-trifluoroacetamido-daunomycinone of formula VIII sog ^ n about he he which is reacted with the protected halo sugar of formula IX where Na1 represents a chlorine atom, in anhydrous methylene chloride at 5–10 ° С in the presence of silver trifluoromethanesulfonate to obtain 4-Ν-3 *, 4 ( -Ν, O-anthracycline trifluoroacetyl - protected glycoside, from which after treatment at 0 ° С for 3 h 0.1 n Aqueous sodium hydroxide, if necessary, isolates the compound of formula I as a hydrochloride by treatment with methanolic hydrogen chloride.
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引用文献:
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申请号 | 申请日 | 专利标题 GB878709353A|GB8709353D0|1987-04-21|1987-04-21|4-demethoxy-4-amino-anthracyclines| GB888803302A|GB8803302D0|1988-02-12|1988-02-12|Conversion of 4-demethoxy-4-amino anthracyclinones into 4-demethoxy-anthracyclinones| 相关专利
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