Patent number: 8288380
Abstract: A compound of formula (1): wherein R1 and R2 represent hydrogen, lower alkyl, lower alkenyl, lower alkynyl or R3 represents hydroxyl, lower alkoxy, lower cycloalkyloxy, aryloxy, carboxy, lower alkoxycarbonyl, or NRaRb of the formula R4 and R5 represent halogen, lower alkyl, hydroxyl, or lower alkoxy; R6 represents halogen, lower alkyl, aryl, heterocyclic, hydroxy, lower alkoxy, mercapto, lower alkylthio, lower alkylcarbonyl, amino, nitro or cyano; R7 represents lower alkyl, hydroxyl or lower alkoxy; Ra and Rb represent hydrogen or lower alkyl; ring A represents a cyclic hydrocarbon or a heterocyclic ring; ring B represents a heterocyclic ring; X represents lower alkylene; Z represents a single bond or lower alkylene; Y represents lower alkylene and W1—W2 represents CH—CH, or Y represents a single bond and W1—W2 represents N—CH, CH—N or CH—CH; and 1, m, n and o represent 0, 1, 2, or 3.
Type:
Grant
Filed:
April 17, 2012
Date of Patent:
October 16, 2012
Assignee:
Santen Pharmaceutical Co., Ltd.
Inventors:
Hiroyuki Mogi, Hisashi Tajima, Noriko Mishina, Yusuke Yamazaki, Shinji Yoneda, Katsuhiko Watanabe, Junko Fujikawa, Minoru Yamamoto