V. Slavinskaya, G. Chipens, D. Sile
May 1, 1996
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Journal
Chemistry of Heterocyclic Compounds
Abstract
A four-step method has been developed for the synthesis of N-buryloxycarbonylalanyl-1,4-dioxa-7-azaspiro[4,4]nonane-8(S)-carboxylic acid ethyl ester through the formation of N-benzyloxycarbonyl-1,4-dioxa-7-azaspiro[4,4]nonane-8(S)-carboxylic acid ethyl ester.