Abstract
The semi-synthesis of melithiazol C (2b) has been accomplished in 4 steps and 41% overall yield starting from myxothiazol A (1a) produced by fermentation of Myxococcus fulvus. Key steps are a novel reductive cleavage of a thiazole ring by DIBAL-H and the conversion of the amide 2a into the methyl ester 2b via an imino ester. The biological activities of 2b and of derivatives of its 10-acetyl group are described.
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