Patent number: 7304083
Abstract: A 2-iminoimidazole derivative represented by the formula: {wherein R1, R2 and R3 represent hydrogen, optionally substituted C1-6 alkyl, etc.; R6 represents hydrogen, C1-6 alkyl, C1-6 alkyloxycarbonyl, etc.; Y1 represents a single bond, —CH2—, etc.; Y2 represents a single bond, —CO—, etc.; and Ar represents hydrogen, a group represented by the formula: [wherein R10–R14 represent hydrogen, C1-6 alkyl, hydroxyl, C1-6 alkoxy, etc., and R11 and R12 or R12 and R13 may bond together to form a 5- to 8-membered heterocycle], etc.}or salt thereof.
Type:
Grant
Filed:
April 19, 2002
Date of Patent:
December 4, 2007
Assignee:
Eisai R&D Management Co., Ltd.
Inventors:
Shuichi Suzuki, Makoto Kotake, Mitsuaki Miyamoto, Tetsuya Kawahara, Akiharu Kajiwara, Ieharu Hishinuma, Kazuo Okano, Syuhei Miyazawa, Richard Clark, Fumihiro Ozaki, Nobuaki Sato, Masanobu Shinoda, Atsushi Kamada, Itaru Tsukada, Fumiyoshi Matsuura, Yoshimitsu Naoe, Taro Terauchi, Yoshiaki Oohashi, Osamu Ito, Hiroshi Tanaka, Takashi Musha, Motoji Kogushi, Tsutomu Kawata, Toshiyuki Matsuoka, Hiroko Kobayashi, Ken-ichi Chiba, Akifumi Kimura, Naoto Ono
Patent number: 7049332
Abstract: An N-aminoimidazole or N-aminoimidazolethione derivative, a pharmaceutically acceptable salt, a tautomer, an isomer, an ester or glycosylation product thereof, said derivative being represented by general formula (I): wherein m=zero or 1, n=zero or 1, R1 is selected from hydrogen, methyl or ethyl, R2 is selected from hydrogen, SH or —SR0 wherein R0 is methyl, benzyl or glucose residue; Q is selected from 1-naphtyl, 2-naphtyl, biphenyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-pyrimidyl, 4-pyrimidyl, 5-pyrimidyl, thienyl, or a substituted or unsubstituted phenyl ring, wherein the substitution is understood as being one or two substituents selected from H, F, Cl, Br, I, methyl, ethyl or isopropyl; L is selected from 1-naphtyl, 2-naphtyl, biphenyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-pyrimidyl, 4-pyrimidyl, 5-pyrimidyl, thienyl, or a substituted or unsubstituted phenyl ring wherein the substitution is understood as being one or two substituents selected from H, F, Cl, Br, I, methyl, ethyl or isopropyl.
Type:
Grant
Filed:
February 23, 2001
Date of Patent:
May 23, 2006
Assignee:
K. U. Leuven Research & Development
Inventors:
Erik De Clercq, Arthur Van Aerschot, Piet Herdewijn, Irene Lagoja, Christophe Pannecoucque