STREPTOGRAMIN DERIVATIVE, PREPARATION THEREOF AND COMPOSITION CONTAINING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a novel antibacterial agent with advantageous antibacterial activity. SOLUTION: Group A streptogramin derivatives is expressed by general formula (I), wherein: R1represents cyano or ethynyl radicals; R2represents a hydrogen atom or a methyl or ethyl radical; and a bond of formula (α) represents a single bond (stereochemistry 27R) or a double bond. COPYRIGHT: (C)2009,JPO&INPIT