申请人:MANTEGAZZA Simone
公开号:US20070270483A1
公开(公告)日:2007-11-22
A process for preparation of a compound of formula (I), or a salt thereof, both as individual isomer and as mixtures thereof,
wherein each of A and B is independently aryl or heteroaryl optionally substituted with
1
to
4
substituents; and R and R
1
, which can be the same or different, are hydrogen, C
1
-C
6
alkyl or an amino-protecting group; comprising the reaction of a compound (II)
wherein A and B are as defined above, with a compound (III)
wherein each of R and R
1
is independently C
1
-C
6
alkyl or an amino-protecting group; and X is a leaving group; in the presence of a basic agent; and, if desired the conversion of a compound (I) to another compound (I); and/or, if desired, the separation of an isomeric mixture of a compound (I) into the individual isomers; and/or, if desired, the conversion of a compound (I) to a salt thereof.
一种制备化合物(I)或其盐的方法,该化合物可以是单体异构体,也可以是它们的混合物,其中A和B分别独立地是芳基或杂环芳基,可选择地取代1到4个取代基;R和R1可以相同也可以不同,是氢、C1-C6烷基或氨基保护基;包括将化合物(II)(其中A和B如上定义)与化合物(III)(其中R和R1分别独立地是C1-C6烷基或氨基保护基;X是一个离去基团)在碱性试剂存在下反应;如有需要,将化合物(I)转化为另一种化合物(I);和/或如有需要,将化合物(I)的异构混合物分离成单体异构体;和/或如有需要,将化合物(I)转化为其盐。