Title:
PRODUCTION OF 3-METHOXY-11-METHYLDIBENZ(B, F)(1,4)OXAZEPINE-8-CARBOXYLIC ACID
Document Type and Number:
Japanese Patent JPH04234862
Kind Code:
A
Abstract:
PURPOSE: To provide a novel method for industrially producing 3methoxy-11- methylbenz[b,f][1,4]oxazepine-8-benzoic acid.
CONSTITUTION: 3-Acetoxyamino-4-(3-methoxyphenoxy)benzoic acid is subjected to a ring-closing reaction in a liquid dehydrating agent or in the presence of a dehydrating agent in a water-soluble aprotic polar organic solvent.
Inventors:
SHIMIZU HIROHITO
SASAHARA KAZUO
KATO MASAHIRO
SASAHARA KAZUO
KATO MASAHIRO
Application Number:
JP12885791A
Publication Date:
August 24, 1992
Filing Date:
March 15, 1991
Export Citation:
Assignee:
CHUGAI PHARMACEUTICAL CO LTD
International Classes:
C07D267/20; (IPC1-7): C07D267/20
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