Intermediates useful for the manufacture of carbapenem and a stereoselective manufacturing method therefor
申请人:Eisai Co., Ltd.
公开号:US06372914B1
公开(公告)日:2002-04-16
The present invention provides an efficient stereoselective method for manufacturing (2S,4S)-2-[[(R)-hydroxy-(3R)-cyclic amine-3-yl]methyl]pyrrolidine-4-thiol or a salt thereof which is useful as an intermediate for the manufacture of carbapenem and also provides the intermediate.
A method for manufacturing which comprises the step of reacting a compound of the formula (I):
(wherein, R1 is a lower alkylsulfonyl group, an optionally substituted arylsulfonyl group or an alkylsilyl group; and R2 is a protecting group for an amino group) with a compound of the formula (II):
(wherein, R3 is a substituted or unsubstituted lower alkyl group or aryl group; X is an oxygen atom or a sulfur atom; Y is an azide group or a nitro group; and m is an integer of 2 to 5).
本发明提供了一种高效的立体选择性方法,用于制造(2S,4S)-2-[[R)-羟基-(3R)-环胺-3-基]甲基]吡咯烷-4-硫醇或其盐,该化合物作为制造碳青霉烯的中间体具有重要用途,并提供了该中间体。
一种制造方法,包括以下步骤:使式(I)的化合物:
(其中,R1为低级烷基磺酰基、可任选取代的芳基磺酰基或烷基硅基;R2为氨基保护基)与式(II)的化合物反应:
(其中,R3为取代或未取代的低级烷基或芳基;X为氧原子或硫原子;Y为叠氮基或硝基;m为2至5的整数)。