CYCLIZATION STEP IN METHOD OF PRODUCING QUINOLONES AND NAPHTHYRIDINES

摘要

<P>PROBLEM TO BE SOLVED: To provide an improved method for obtaining quinolones or derivatives thereof which are capable of serving as active substances by themselves or as intermediates for forming other active substances. Ž<P>SOLUTION: The method of producing the quinolones incluldes a step of reacting an organosilicon reagent with a compound having a structure according to formula (A). Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž