申请人:Dainippon Pharmaceutical Co., Ltd.
公开号:EP1243576A1
公开(公告)日:2002-09-25
The present invention provides a process for industrially producing (aminomethyl)trifluoromethylcarbinol derivatives (I), in particularly, optically active compounds thereof, which are useful as starting compounds for drugs such as protease inhibitors, etc. The present invention relates to a process for producing the compound (I) from 1,3-oxazolidin-5-one derivative (II) being easily derived from an α-amino acid, which is carried out stepwise or by one-spot reaction, and further relates to a process for producing the compound (I) comprising the reduction of the 5-hydroxy compound (II).
wherein R1 is a group corresponding to the side chain of a natural or non-natural α-amino acid, R2 is a hydrogen atom or R21 (in which R21 is a protecting group for amino group having a carbonyl group at the binding site to the nitrogen atom).
本发明提供了一种工业化生产(氨基甲基)三氟甲基甲醇衍生物(I)的工艺,特别是其光学活性化合物,该化合物可用作蛋白酶抑制剂等药物的起始化合物。本发明涉及一种由 1,3-噁唑烷-5-酮衍生物(II)制备化合物(I)的工艺,该衍生物(II)易于从 α-氨基酸衍生而来,该工艺通过逐步反应或单点反应进行,本发明还涉及一种制备化合物(I)的工艺,该工艺包括还原 5-羟基化合物(II)。
其中 R1 是与天然或非天然 α-氨基酸侧链相对应的基团,R2 是氢原子或 R21(其中 R21 是在氮原子结合部位具有羰基的氨基的保护基团)。