Process for the preparation of a precursor of montelukast
申请人:Synthon B.V.
公开号:EP2181986A1
公开(公告)日:2010-05-05
The present invention relates to a process of making a compound of formula (5)
wherein R is a C1-C4 alkyl group and L is a leaving group.
本发明涉及一种式(5)化合物的制造工艺
其中 R 为 C1-C4 烷基,L 为离去基团。
PROCESS FOR MAKING MONTELUKAST AND INTERMEDIATES THEREFOR
申请人:Synthon B.V.
公开号:EP1740545B1
公开(公告)日:2010-03-24
US7501517B2
申请人:——
公开号:US7501517B2
公开(公告)日:2009-03-10
US7829716B2
申请人:——
公开号:US7829716B2
公开(公告)日:2010-11-09
Process for making montelukast and intermediates therefor
申请人:Overeem Arjanne
公开号:US20050245568A1
公开(公告)日:2005-11-03
A process for making montelukast, a pharmaceutically useful compound of the following formula and salts thereof:
using a compound of formula (20)
is provided.