DRUG

摘要

PROBLEM TO BE SOLVED: To provide an oxazole compound having inhibition specific to phosphodiesterase 4. SOLUTION: The oxazole compound or its salt is represented by formula (1) [wherein R1is an aryl group which may have a substituent; R2is an aryl group or a nitrogen-containing heterocyclic group which may have a substituent; W is a divalent group represented by -Y1-A1- or -Y2-C(=O)- (wherein Y1is -C(=O)- or the like; A1is a lower alkylene group or the like; and Y2is a piperazinediyl group or the like)]. COPYRIGHT: (C)2009,JPO&INPIT