专利检索 ap:("Cipla Limited") AND inv:"KANKAN Rajendra Narayanrao" 第 1 页

1.

发明授权
AN IMPROVED PROCESS FOR THE PREPARATION OF TEMOZOLOMIDE AND ANALOGS 有权
标题翻译：改进方法，替莫唑胺PRODUCING及类似品

公开(公告)号：EP2066672B1

公开(公告)日：2015-06-24

申请号：EP07823983.7

申请日：2007-09-28

申请人： Cipla Limited

发明人： SRINIVAS Pathi L. , RAO Dharmaraj Ramachandra , KANKAN Rajendra Narayanrao

IPC分类号： C07D487/04 , A61K31/4188 , A61P35/00

CPC分类号： C07D487/04

2.

发明公开
PROCESSES FOR THE SYNTHESIS OF LEVOCETIRIZINE AND INTERMEDIATES FOR USE THEREIN 审中-公开
标题翻译：方法左西替利的合成

公开(公告)号：EP2307392A2

公开(公告)日：2011-04-13

申请号：EP09757761.3

申请日：2009-06-02

申请人： Cipla Limited

发明人： RAO, Dharmaraj Ramachandra , KANKAN Rajendra Narayanrao , GHAGARE, Maruti , CHIKHALIKAR, Sandip Vasant

IPC分类号： C07D295/088

CPC分类号： C07D295/096 , C07C217/58 , C07C309/66 , C07D295/073 , C07D295/088

摘要： The present invention provides a compound of formula (IV) wherein R is Cl, Br, NO
2 , OH or OR', and R' is alkyl, and its use in the synthesis of levocetirizine, including its use in the synthesis of (-)-1-[(4-chlorophenyl)-phenyl methyl] piperazine, an intermediate useful in the synthesis of levocetirizine. The present invention also provides compounds (II) and (III) which are useful in the synthesis of compound (IV).