申请人:LABORATORIOS DEL DR. ESTEVE, S.A.
公开号:EP1029852A1
公开(公告)日:2000-08-23
The process comprises (a) the enantioselective reduction of a pro-chiral ketone (III) by the use of a reducer and a chiral catalyst which have been derived from boron in a solvent or a mixture of anhydrous solvents in order to form an enantiomer of an alcohol (II), and (b) the alkylation of (II), in conditions of phase transfer, optionally after isolation and purification of the same, with 2-chloro-N, N-dimethylethylamine in order to form an enantiomer of (I). Cis-olirtine has analgesic properties.
该工艺包括:(a) 在溶剂或无水溶剂的混合物中,使用一种还原剂和一种手性催化剂(由硼衍生)对原手性酮(III)进行对映选择性还原,以形成醇(II)的对映体、(b) 在相转移条件下,可选择在分离和纯化后,用 2-氯-N,N-二甲基乙胺对(II)进行烷基化,以形成(I)的对映体。顺式奥利汀具有镇痛作用。