申请人:SOPHIA SCHOOL CORPORATION
公开号:US10280143B1
公开(公告)日:2019-05-07
There is provided a process for preparing a compound represented by the following general formula (1) or a salt thereof, which comprises exchanging one or more of an amino proton in a compound represented by the following general formula (2) or a salt thereof to deuterium, and after the exchanging, converting a deuterium-exchanged compound of the compound represented by the general formula (2) or a salt thereof into the compound represented by the general formula (1) or a salt thereof:
wherein, in the general formula (1), one, or two or more of hydrogen atom may be substituted with their isotope; and in the general formula (2), each of R1 is independently hydrogen atom, tert-butyloxycarbonyl group or benzyloxycarbonyl group, and R2 is independently tert-butyl group, benzyl group, methyl group or ethyl group.
提供了一种制备下述一般式(1)或其盐的化合物的方法,其中包括将下述一般式(2)或其盐的化合物中的一个或多个氨基质子与氘进行交换,交换后将下述一般式(2)或其盐的氘交换化合物转化为下述一般式(1)或其盐:其中,在一般式(1)中,一个或两个氢原子可以被其同位素替代;在一般式(2)中,每个R1独立地是氢原子、叔丁氧羰基团或苄氧羰基团,R2独立地是叔丁基团、苄基团、甲基或乙基。