PROCESS FOR PREPARING A COMPOUND USEFUL FOR PRODUCING AN OPTICALLY ACTIVE DIAZABICYCLOOCTANE COMPOUND
申请人:Meiji Seika Pharma. Co., Ltd.
公开号:US20140303375A1
公开(公告)日:2014-10-09
A process for preparing the compound of the following formula (E):
wherein Bn represents a benzyl group, and tBu represents a tert-butyl group, the process including: (a) subjecting the following compound (B) to trifluoroacetylation,
wherein tBu represents a tert-butyl group to produce the following compound (C):
wherein tBu represents a tert-butyl group, and TFA represents a trifluoroacetyl group; (b) reacting the compound (C) with benzyloxyamine in the presence of a hydroxyl group activating agent to produce the following compound (D):
wherein Bn represents a benzyl group, tBu represents a tert-butyl group, and TFA represents a trifluoroacetyl group; and (c) subjecting the compound (D) to detrifluoroacetylation.
一种制备以下式(E)化合物的方法:其中Bn代表苄基,tBu代表叔丁基,该方法包括:(a)将以下化合物(B)暴露于三氟乙酰化反应下,其中tBu代表叔丁基,以产生以下化合物(C):其中tBu代表叔丁基,TFA代表三氟乙酰基;(b)在活化剂存在下,将化合物(C)与苄氧胺反应,以产生以下化合物(D):其中Bn代表苄基,tBu代表叔丁基,TFA代表三氟乙酰基;(c)将化合物(D)暴露于去除三氟乙酰反应下。