Synthesis of n-methyl-3-carboxy-2-chloro-dibenzo[c,f][1,4,5]oxa-thiazepine s,s-dioxide and its derivatives
作者:A. S. Bychenkov、A. V. Tarasov、P. K. Pisarev、V. Sh. Feldblum、Yu. A. Moskvichev
DOI:10.1007/s10593-010-0438-9
日期:2009.11
new dibenzo-condensed oxathiazepinecarboxylic acid was obtained starting from the methyl ester of 2,4-dichloro-5-chlorosulfonylbenzoic acid. Derivatives were obtained from N-phenylamide and N-methylamide of 2,4-dichloro-5-chlorosulfonylbenzoic acid. Methods for the preparation of the starting aromaticsulfonyl chlorides were proposed.