Monobactams. Preparation of (S)-3-amino-2-oxoazetidine-1-sulfonic acids from L-. alpha.-amino-. beta.-hydroxy acids via their hydroxamic esters

DM Floyd, AW Fritz, J Pluscec, ER Weaver…

Index: Journal of Organic Chemistry, , vol. 47, # 26 p. 5160 - 5167

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Citation Number: 112

Abstract

... The product could then be isolated by concentration of the organic extracts. In all cases, the products were essentially free from extraneous salts and organic impurities and re- quired no further purification. ... Page 5. 5164 J. Org. Chem., Vol. 47, No. 26, 1982 Scheme VI1 ...