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公开(公告)号:US5011774A
公开(公告)日:1991-04-30
申请号:US486701
申请日:1990-02-28
摘要: A novel process utilizing adenosine deaminase to selectively produce .beta.-(D)-2',3'-dideoxyinosine in high yields from an .alpha.,.beta.-anomeric mixture. .beta.-(D)-2',3'-Dideoxyinosine so produced is useful as an antiviral and antibiotic agent.
摘要翻译: 一种利用腺苷脱氨酶以α,β-异构体混合物高产率选择性产生β-(D)-2',3'-二脱氧肌苷的新方法。 所产生的β-(D)-2',3'-二脱氧肌苷可用作抗病毒和抗生素。
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公开(公告)号:US4870168A
公开(公告)日:1989-09-26
申请号:US19396
申请日:1987-02-26
IPC分类号: C07D501/18 , A61K31/545 , A61K31/546 , A61K31/695 , A61P31/04 , B01J27/13 , B01J31/04 , B01J31/22 , C07D20060101 , C07D501/00 , C07D501/04 , C07D501/16 , C07D501/20 , C07D501/22 , C07D501/24 , C07D501/38 , C07D501/46 , C07D501/59 , C07F7/10
CPC分类号: C07D501/00 , C07D501/04 , C07D501/20 , C07D501/22 , C07D501/24 , C07D501/59
摘要: There is disclosed a process for the production of certain 3-hydrocarbyl-3-cephem derivatives wherein the hydrocarbyl group is selected from 1-alkenyl and conjugated and unconjugated 1-polyalkenyl, 1-alkynl, carbocyclic and heterocyclic aryl, and carbocyclic and heterocyclic arylmethyl and, in the case of the 1-alkenyl and conjugated 1-polyalkenyl derivatives, with substantially complete stereospecificity, by coupling a 3-triflyloxy cephem with a hydrocarbyltributylstannane in the presence of bis(dibenzylideneacetonyl)-palladium, a phosphine, and a metal halide such as, for example, zinc chloride. The 3-unsaturated alkyl-3-cephem derivatives so-produced are useful as broad-spectrum antibacterial agents.
摘要翻译: 公开了生产某些3-烃基-3-头孢烯衍生物的方法,其中烃基选自1-烯基和共轭和未共轭的1-聚烯基,1-炔烃,碳环和杂环芳基,以及碳环和杂环芳基甲基 并且在1-烯基和共轭的1-聚烯基衍生物的情况下,具有基本上完全的立体定向性,通过在双(二亚苄基丙酰基) - 钯,膦和金属卤化物的存在下将3-三氟氧基头孢烯与烃基三丁基锡烷偶联 例如氯化锌。 所产生的3-不饱和烷基-3-头孢烯衍生物可用作广谱抗菌剂。
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