2-substituted benzothiazole derivatives useful in the treatment of diabetic complications
申请人:GRELAN PHARMACEUTICAL CO., LTD.
公开号:EP0714893A1
公开(公告)日:1996-06-05
Unique benzothiazole derivatives which exert superior aldose redactase inhibiting actions are unexpectedly and advantageously useful in the prophylactic and therapeutic treatment of diabetic complications. A benzothiazole derivative compound of the formula (1):
wherein X is halogen, R¹ and R², which are the same or different, are each independently hydrogen or halogen, A is a methylene group or a sulfur atom, and
-B-COOR³ is a group selected from the group consisting of (2) to (5):
wherein R³ is hydrogen or C1 to C3 lower alkyl, Y is hydrogen, halogen, C1 to C3 lower alkyl, carboxyl or dilower alkylamino and n is an integer of 1 to 3; Z is oxygen or sulfur, R⁴ is C1 to C3 lower alkyl, optionally substituted phenyl, optionally substituted benzyl or optionally substituted phenethyl and m is an integer of 2 to 5; or a pharmaceutically acceptable salt and a pharmaceutical composition comprising the same which is a useful prophylactic or therapeutic agent for the treatment of diabetic complications.
Benzothiazol-2-ylcarboxylic acids with diverse spacers: A novel class of potent, orally active aldose reductase inhibitors
作者:Tomoji Aotsuka、Naoki Abe、Kanako Fukushima、Naoki Ashizawa、Motoyuki Yoshida
DOI:10.1016/s0960-894x(97)00287-4
日期:1997.7
The benzothiazol-2-ylcarboxylic acids, with diverse spacers between the carboxy group and the benzothiazole ring, were synthesized and evaluated for their ability to inhibit aldose reductase (AR). The phenylacetic acids 6 which have a less complex structure than that of existing AR inhibitors were found to be highly potent, orally active AR inhibitors. (C) 1997 Elsevier Science Ltd.
SUBSTITUTED HETEROARYLALKANOIC ACIDS AND THEIR USE AS ALDOSE REDUCTASE INHIBITORS
申请人:The Institutes for Pharmaceutical Discovery, LLC
公开号:EP1444228B1
公开(公告)日:2008-05-21
US5700819A
申请人:——
公开号:US5700819A
公开(公告)日:1997-12-23
2-substituted benzothiazole derivatives and prophylactic and therapeutic
申请人:Grelan Pharmaceutical Co., Ltd.
公开号:US05700819A1
公开(公告)日:1997-12-23
Unique benzothiazole derivatives which exert superior aldose redactase inhibiting actions are unexpectedly and advantageously useful in the prophylactic and therapeutic treatment of diabetic complications. A benzothiazole derivative compound of the formula (1): ##STR1## wherein X is halogen, R.sup.1 and R.sup.2, which are the same or different, are each independently hydrogen or halogen, A is a methylene group or a sulfur atom, and --B--COOR.sup.3 is a group as defined in the specification; or a pharmaceutically acceptable salt and a pharmaceutical composition comprising the same which is a useful prophylactic or therapeutic agent for the treatment of diabetic complications.