| abstract |
Abstract A compound of the following formula is provided: wherein A represents a carbonyl group which may be protected; B represents an aldehyde group which may be protected; R1 represents a hydroxyl group which may be protected; R2 represents a hydrogen atom or acyl group; W represents a hydrogen atom, hydroxyl group, lower alkanoyloxy group or substituted sulfonyloxy group; Y represents a hydrogen atom, halogen atom, hydroxyl group or substituted sulfonyloxy group; and broken line "-------" represents a double bond or single bond. This compound is useful for producing 3,4'-dideoxy-mycaminosyltylonolide useful as an antimicrobial agent. |