[EN] METHOD OF FORMING OSELTAMIVIR AND DERIVATIVES THEREOF<br/>[FR] PROCÉDÉ DE FORMATION D'OSELTAMIVIR ET DE SES DÉRIVÉS ET APPLICATIONS CORRESPONDANTES
申请人:UNIV NANYANG
公开号:WO2009078813A1
公开(公告)日:2009-06-25
A process is provided for the synthesis of 4,5-diamino cyclohexene carboxylate ester (1): or a pharmaceutically acceptable salt thereof. R1 - R3 are a silyl-, an aliphatic, alicyclic, aromatic, arylaliphatic, or an arylalicyclic group. R4, R11 and R12 are H, a silyl-group, an aliphatic, alicyclic, aromatic, arylaliphatic, or an arylalicyclic group. 3,4-Dihydropyran compound (9): with R5 and R6 being suitable protecting groups, is reacted to form aldehyde (4): which is oxidized and converted to N-substituted carbamate (3): with R7 being a suitable protecting group. (3) is, via oxazolinidone (13): converted to azido carboxylate ester (2): and then to 4,5-diamino cyclohexene carboxylate ester (1).
提供了一种用于合成4,5-二氨基环己烯羧酸酯(1)或其药用可接受的盐的过程。R1 - R3是硅基、脂肪、脂环、芳香、芳脂或芳环基团。R4、R11和R12是H、硅基、脂肪、脂环、芳香、芳脂或芳环基团。将3,4-二氢吡喃化合物(9)与适当的保护基R5和R6反应,形成醛(4),氧化并转化为N-取代的碳酸酯(3),其中R7是适当的保护基。通过噁唑啉二酮(13)将(3)转化为偶氮羧酸酯(2),然后转化为4,5-二氨基环己烯羧酸酯(1)。