Patent number: 6911443
Abstract: A compound of the formula (I) in which R1 is —OR11, —SR11, —SOR11, —SO2R11, —NHR11, or —NR12R13 , and R11, R12, and R13 are as defined broadly in the text. R2 is H, C1-C6alkyl, carbamoyl, or an ester group. R3 is thienyl, pyridyl optionally substituted by halogen or C1-C6alkoxy; naphthyl optionally substituted by C1-C6alkoxy; dioxane fused phenyl; dioxacyclopentane fused phenyl; or optionally substituted phenyl. Y is CH or N. A process for preparing such compounds, pharmaceutical compositions containing such compounds, and a method of treating asthma using them are also disclosed and claimed.
Type:
Grant
Filed:
April 17, 2001
Date of Patent:
June 28, 2005
Assignee:
Bayer Aktiengesellschaft
Inventors:
Takeshi Yura, Arnel B. Concepcion, Gyoonhee Han, Makiko Marumo, Hiroko Yoshino, Norihiro Kawamura, Toshio Kokubo, Hiroshi Komura, Yingfu Li, Timothy B. Lowinger, Muneto Mogi, Noriyuki Yamamoto, Nagahiro Yoshida, Scott Miller, Margaret A. Popp, Aniko M. Redmann, Martha E. Rodriguez, William J. Scott, Ming Wang