Patent number: 6235736
Abstract: A 3-anilino-2-cycloalkenone derivative of the formula (I):
wherein, R1 represents a C1 to C8 alkyl group, which may have a substituent, except for a methyl group, a C3 to C7 cycloalkyl group, a 3-tetrahydrofuryl group, an 2-indanyl group, etc., R2 represents a C1 to C4 alkyl group, R3 represents a hydrogen atom, a C3 to C7 alkyl group, which may have a substituent, a C3 to C7 cycloalkyl group, etc., R4 represents a hydrogen atom, a C1 to C5 alkyl group, which may have a substituent, a halogen atom, etc., R5, R6, R7, and R8 independently represent a hydrogen atom, a C1 to C5 alkyl group, which may have a substituent, etc., X represents —(CR11R12)n—, wherein n is 0 to 2, R11 and R12 independently represent a hydrogen atom, a C1 to C5 alkyl group, which may have a substituent, etc.
Type:
Grant
Filed:
March 20, 2000
Date of Patent:
May 22, 2001
Assignee:
Nikken Chemicals Co., Ltd.
Inventors:
Shinji Ina, Kenjirou Yamana, Kyoji Noda, Akane Takahama, Toshihiko Akiyama
Patent number: 6180637
Abstract: The invention relates to 1,2,5-trisubstituted 1,2-dihydroindazol-3-ones of formula (I)
wherein
X is —SO2—, —SO—, —(CH2)p—, —(CH2)p—O—, —(CH2)p—(C═O)—, —(CH2)p—(C═O)—NH—, —(CH2)p—CHOH—, —CHOH—(CH2)p—, —(CH2)p—CH═CH—, —CH═CH—(CH2)p—,
Y is —(C═O)—, —(C═O)—NH—, —(C═O)—NH—(CH2)p—, —C═O)—(CH2)p—, —(CH2)p—, —(CH2)p—O—, —(CH2)p—(C═O)—, —(CH2)p—(C═O)—NH—, —(CH2)p—(C═O)—NH—(CH2)p—, —(CH2)p—CHOH—, —CHOH—(CH2)p—, —(CH2)p—CH═CH—, —CH═CH—(CH2)p—,
Z is —O—, —O—(CH2)p—, —NH—, —NH—(
Type:
Grant
Filed:
May 5, 1999
Date of Patent:
January 30, 2001
Assignee:
Arzneimittelwerk Dresden GmbH
Inventors:
Rudolf Schindler, Norbert Höfgen, Hildegard Poppe, Kay Brune