申请人:Hu Shanghui
公开号:US20050192441A1
公开(公告)日:2005-09-01
The present invention relates to methods of preparing a stereoisomerically enriched compound of formula (I),
wherein R
6
is hydrogen, comprising treating a compound of formula (I), wherein R
6
is chosen from C
1
-C
10
alkyl, C
2
-C
10
alkenyl, C
2
-C
10
alkynyl, —(CR
7
R
8
)
t
(C
6
-C
14
aryl), and —(CR
7
R
8
)
t
(4-10 membered heterocyclic), and wherein said C
6
-C
14
aryl and 4-10 membered heterocyclic are optionally substituted with at least one substituent chosen from halo, C
1
-C
10
alkyl, —OR
7
, and —N(R
7
R
8
), with a biocatalyst in an aqueous solution, an organic solvent, or a mixture of organic and aqueous solvents wherein at least one stereoisomer is selectively hydrolyzed.
本发明涉及制备式(I)的立体异构体富集化合物的方法,其中R6为氢,包括用生物催化剂在水溶液、有机溶剂或有机和水溶剂的混合物中处理式(I)的化合物,其中R6选择自C1-C10烷基,C2-C10烯基,C2-C10炔基,—(CR7R8)t(C6-C14芳基)和—(CR7R8)t(4-10成员杂环),其中所述的C6-C14芳基和4-10成员杂环可选地被至少一种卤素、C1-C10烷基、—OR7和—N(R7R8)的取代基所取代,至少选择一种立体异构体被选择性水解。