发明名称 |
PROCESS FOR PREPARING OLOPATADINE AND/OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF |
摘要 |
The present invention relates to a process for the preparation of olopatadine and, more particularly, to an improved method of synthesizing olopatadine which comprises reacting a dibenz [b,e] oxepin -1 1- one derivative of formula (III) and a suitable reagent under Witting condition, and to the intermediate 1 1 -[(Z)-3-(dimethylamino)-propylidene] -6- 1 1 -dihvdrodibenz[b,e]-oxepin-2-acet- amide p-toluensulfonate salt. |
申请公布号 |
CA2746331(C) |
申请公布日期 |
2016.09.06 |
申请号 |
CA20102746331 |
申请日期 |
2010.02.01 |
申请人 |
ZACH SYSTEM S.P.A. |
发明人 |
GUIDI, ALBERTO;CHIARELLO, FILIPPO;ORRU', GIANMAURO;VERZINI, MASSIMO;COTARCA, LIVIUS;KIZIRIAN, JEAN-CLAUDE;TREPAT GUIXER, ELISENDA;MARQUILLAS OLONDRIZ, FRANCISCO |
分类号 |
C07D313/12 |
主分类号 |
C07D313/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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