Tetrahedron

Cleavage and some modifications of the 7-amide group of the cephamycins

M Shiozaki, N Isihida, K Iino, T Hiraoka

文献索引：Shiozaki, Masao; Ishida, Noboru; Iino, Kimio; Hiraoka, Tetsuo Tetrahedron, 1980 , vol. 36, p. 2735 - 2740

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被引用次数: 8

摘要

The cleavage and some modifications of the 7-amide group of cephamycins are described. Cephamycin derivatives 16b, c which were synthesized from the naturally occurring cephamycin C (16a) were converted to the corresponding oxamic acid derivatives 17a, e respectively by the reaction with oxalyl chloride and successive treatment with water. The reaction of the oxamic acid 17a with diphenylcarbodiimide gave 7-aminocephamycinoic ...