PROCESS FOR PREPARING 1-OXADETHIACEPHAM COMPOUNDS

Title compds.(I; A= amino or substituted amino; Y = secodary group such as III, IV, V, VI, VII; COB = carboxyl or protective carboxyl; X = H or nucleophilic group; Z = leaving group), useful as fungicide, were prepd. by rearranging II. Thus, 350 mg 7α-benzamido-3 -hydroxy-3 -hydroxymethyl-1-dethia-1...

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Bibliographic Details
Main Authors NAGADA WADARU, SUZI DERUZI, YOSIOGA MISURU, GISUGAWA IGUO, HAMASIMA YOSIO, UEO SHOIAIRO
Format Patent
LanguageEnglish
Korean
Published 25.06.1981
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:Title compds.(I; A= amino or substituted amino; Y = secodary group such as III, IV, V, VI, VII; COB = carboxyl or protective carboxyl; X = H or nucleophilic group; Z = leaving group), useful as fungicide, were prepd. by rearranging II. Thus, 350 mg 7α-benzamido-3 -hydroxy-3 -hydroxymethyl-1-dethia-1-oxazepham-4α-diphenylmethylcarboxylate was treated with pyridine and methanesulfonyl chloride at 0 C for 1 hr in dichloromethane to give 145 mg 7α-benzamido-3 -hydroxy-3 -methanesulfonyloxy-methyl-1-dethia-1-oxacepham-4α-diphenylmethyl-carboxylate.
Bibliography:Application Number: KR19810000203