Invention Grant
US07687629B2 Process for preparing 4-aminomethyl-3-alkoxyiminopyrrolidine methanesulfonate
有权
制备4-氨基甲基-3-烷氧基亚氨基吡咯烷甲磺酸盐的方法
- Patent Title: Process for preparing 4-aminomethyl-3-alkoxyiminopyrrolidine methanesulfonate
- Patent Title (中): 制备4-氨基甲基-3-烷氧基亚氨基吡咯烷甲磺酸盐的方法
-
Application No.: US11882929Application Date: 2007-08-07
-
Publication No.: US07687629B2Publication Date: 2010-03-30
- Inventor: Gyo-Hyun Hwang , Yeong-Dae Kim , Hyun Nam , Jay-Hyok Chang , Hyun-Ik Shin , Young-Keun Kim , Kyung Hee Lee , Jae Sung Lee , Hyun-Kuk Noh
- Applicant: Gyo-Hyun Hwang , Yeong-Dae Kim , Hyun Nam , Jay-Hyok Chang , Hyun-Ik Shin , Young-Keun Kim , Kyung Hee Lee , Jae Sung Lee , Hyun-Kuk Noh
- Applicant Address: KR
- Assignee: LG Life Sciences Ltd.
- Current Assignee: LG Life Sciences Ltd.
- Current Assignee Address: KR
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- Priority: KR10-2003-0014469 20030307
- Main IPC: C07D471/02
- IPC: C07D471/02
Abstract:
The present invention relates to a process for the preparation of 4-aminomethyl-3-alkoxyiminopyrrolidine methanesulfonate, a key intermediate of quinolone antibiotics. According to the process of the present invention, the total number of steps has been shortened to 2-3 steps, the solid separation is not required, and the use of costly chemicals, particularly (BOC)2O (t-butoxycarbonyl anhydride), several organic solvents and reactants, is eliminated.
Public/Granted literature
- US20070282107A1 New process for preparing 4-aminomethyl-3-alkoxyiminopyrrolidine methanesulfonate Public/Granted day:2007-12-06
Information query
