摘要:
A novel succinamic acid compound represented by general formula (1) or a pharmaceutically acceptable salt thereof; a preventive and/or a remedy for complications of diabetes containing the compound or the salt as the active ingredient; an aldose reductase inhibitor containing the compound or the salt as the active ingredient; and a process for producing the compound or the salt. In said formula, R1 represents alkyl or lower alkenyl, and R2 represents carboxyl which may be esterified. The invention compound (1) and the salt have a potent aldose reductase inhibitor activity on mammals including humans and an excellent safety, and hence are useful as a remedy for therapeutic treatment of complications of diabetes, such as failure of corneal lesion union, cataract, neurosis, retinopathy and nephropathy, especially cataract and neurosis. The invention process can provide the invention compounds having such a usefulness efficiently.
摘要:
Provision of a succinamic acid compound of the formula (1)
wherein R 1 is an alkyl or a lower alkenyl and R 2 is an optionally esterified carboxyl, a pharmaceutically acceptable salt thereof, an agent for the prophylaxis and/or treatment of the complications of diabetes, comprising, as an active ingredient, the succinamic acid compound or a pharmaceutically acceptable salt thereof, an aldose reductase inhibitor comprising, as an active ingredient, the succinamic acid compound or a pharmaceutically acceptable salt thereof, and a method for producing the succinamic acid compound or a pharmaceutically acceptable salt thereof. The novel succinamic acid compounds of the formula (1) of the present invention and pharmaceutically acceptable salts thereof have a strong aldose reductase inhibitory activity in mammals such as human, and show superior safety. Hence, they are useful as pharmaceutical agents for the treatment of the complications of diabetes such as faulty union of corneal injury, cataract, neurosis, retinopathy and nephropathy, in particular, cataract and neurosis. According to the production method of the present invention, efficient production of such useful compounds of the present invention can be provided.