申请人:SUMITOMO PHARMACEUTICALS COMPANY, LIMITED
公开号:EP0180189A2
公开(公告)日:1986-05-07
A beta-lactam compound of the formula:
wherein R1 is a hydrogen atom, a lower alkyl group or a 1-hydroxy(lower)alkyl group wherein the hydroxyl group is optionally protected, R2 is a hydrogen atom or a protective group for the nitrogen atom and R3 is a methyl group, a halomethyl group, a hydroxymethyl group, a protected hydroxymethyl group, a formyl group, a carboxyl group, a lower alkoxycarbonyl group or an ar(lower)alkoxycarbonyl group wherein the aryl group is optionally substituted, or R2 and R3 are combinted together to form an oxaalkylene group and, when taken together with one nitrogen atom and two carbon atoms adjacent thereto, they represent a six-membered cyclic aminoacetal group, which is useful as a valuable intermediate in the stereospecific production of 1-methylcarbapenem compounds.
式中β-内酰胺化合物:
其中 R1 是氢原子、低级烷基或 1-羟基(低级)烷基,其中羟基可选择被保护;R2 是氢原子或氮原子的保护基团;R3 是甲基、卤代甲基、羟甲基、被保护的羟甲基、甲酰基、羧基、一个低级烷氧基羰基或一个芳基(低级)烷氧基羰基,其中芳基是任选取代的,或者 R2 和 R3 结合在一起形成一个氧亚烷基,当与一个氮原子和与其相邻的两个碳原子结合在一起时,它们代表一个六元环氨基乙醛基,该氨基乙醛基是立体特异性生产 1-甲基碳青霉烯化合物的重要中间体。