A compound of formula (I) wherein X is O, C O or S; Y is N or CH; R2 and R4 are each independently H, -(CH2)pCOOH, -(CH2)pCON(R5)2 or - (CH2)pCOOC 1-6alkyI; or R2 and R4 together form a 6-membered phenyl ring fused to the five membered ring; each R1 is independently selected from H, halo (e.g. fluoro or chloro), C6-10aryl, C7-12arylalkyl, C2-12alkenyl; OC1-2 alkyl, OC2-12 aikenyl or a C1-12 alkyl group; each R5 is H or C1-6 alkyl; each p is 0 to 3; n is 1 to 4; or a salt, ester, solvate, N-oxide, or prodrug thereof, e.g. a salt thereof.
式(I)的化合物,其中X为O、CO或S;Y为N或CH;R2和R4分别独立地为H、-(
CH2)pCOOH、-( )pCON(R5)2或-( )pCOOC 1-6alkyI;或R2和R4一起形成与五元环融合的六元
苯环;每个R1独立地选自H、卤素(例如
氟或
氯)、C6-10芳基、C7-12芳基烷基、C2-12
烯基;OC1-2烷基、OC2-12
烯基或C1-12烷基基团;每个R5为H或C1-6烷基;每个p为0至3;n为1至4;或其盐、
酯、溶剂化合物、N-
氧化物或前药,例如其盐。