File Entry: Industrial process for OXICONAZOLE Dr Krishnasarma Pathy

Created: 2012-07-24 11:38:44      Last updated: 2013-06-21 09:49:15
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Process for the preparation of 5-cyanophthalide is disclosed which comprises reacting a pharmaceuticallyacceptable salts of 5-carboxyphthalide with an alkyl carbomate to obtain 5-carboxycarbomyl phthalide. Latterwas reacted with 30% HBr in acetic acid to obtain an amide. The latter is further reacted with a chloride so as toobtain substantially pure 5-Cyanophthalide.

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