Patent number: 8754113
Abstract: A compound represented by the formula: or its pharmaceutically acceptable salt. Ring A is aromatic carbocycle or aromatic heterocycle, Z is —O— or —S—, R1 is hydrogen, halogen, hydroxy, cyano, nitro, carboxy, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl or the like, R2 and R3 are each independently hydrogen, halogen, hydroxy or the like, R4 is a group represented by the formula: —(CR6R7)n—R8, R6 and R7 are each independently hydrogen, halogen, hydroxy or the like, n is an integer of 0 to 3, R8 is carboxy, cyano, substituted or unsubstituted alkyl or the like, Rx is halogen, hydroxy, cyano, nitro, carboxy, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl or the like, and m is an integer of 0 to 3.
Type:
Grant
Filed:
December 14, 2010
Date of Patent:
June 17, 2014
Assignee:
Shionogi & Co., Ltd.
Inventors:
Koji Masuda, Shiro Kida, Naoki Yoshikawa, Manabu Katou, Terukazu Kato, Mado Nakajima, Eiichi Kojima, Mitsuhiro Yonehara