ANTIBACTERIAL MYCAMINOSYL TYLONOLIDE DERIVATIVES AND THEIR PRODUCTION

摘要

Mycaminosyl tylonolide derivatives represented by the following general formula (wherein R1 denotes hydroxyl group, a lower alkanoyloxy group, benzoyloxy group, azido group, or amino group which mat optionally be substituted with a lower alkyl or a lower alkanoyl radical; R2 stands for hydrogen atom or hydroxyl group; R3 expresses hydrogen atom or formyl group; and means a double bond or a radical represented by ), and salts thereof.