申请人:Sagami Chemical Research Center
公开号:US05081238A1
公开(公告)日:1992-01-14
An azetidinone derivative having the general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are hydrogen atom or a protective group and R.sup.3 is an alkyl group or hydrogen atom, a process for preparing the same, and a process for preparing an azetidinone derivative having the general formula (II): ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are as above. The azetidinone derivative (I) of the present invention can be converted into an important intermediate of 1.beta.-methylcarbapenem antibiotics of a selective reduction of the double bond.
一种具有通式(I)的氮杂环丙酮衍生物:其中R.sup.1和R.sup.2是氢原子或保护基,R.sup.3是烷基或氢原子,以及其制备方法,以及制备具有通式(II)的氮杂环丙酮衍生物的方法:其中R.sup.1、R.sup.2和R.sup.3如上所述。本发明的氮杂环丙酮衍生物(I)可以转化为1-β-甲基卡巴胞素类抗生素的重要中间体,通过选择性还原双键。