申请人:Centre National de la Recherche Scientifique (CNRS)
公开号:US04767872A1
公开(公告)日:1988-08-30
A compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 each independently represent a hydrocarbon gp which can be substituted and/or carry a heteroatom, or R.sub.1 and R.sub.2 together represent a hydrocarbon, optionally substituted, forming with the carbon atom to which they are attached, a ring capable of carrying a heteroatom, R.sub.3 represents hydrogen, lower alkyl or aryl, and R.sub.4 and R.sub.5 each independently represent hydrogen or a hydrocarbon group, as well as the acid addition salts thereof. A method of preparing the compounds and the use thereof as an anti-tumor medicine are disclosed.
The preparation of several of the entitled epoxides is described in two steps starting from 2-methyl 2-amino but 3-yne, the first one being the reaction of the lithium acetylide with a α-chloroaldehyde or ketone. In certain cases, this reaction Is highly diastereoselectlve giving 96% of the R∗S∗ diastereoisomer.
从2-甲基2-氨基但3-炔基开始的两个步骤描述了几种标题环氧化物的制备,第一个步骤是乙炔化锂与α-氯醛或酮的反应。在某些情况下,该反应是高度非对映选择性的,可提供96%的R * S *非对映异构体。