Three types of diarylethenes having one phenol moiety as an aromatic unit were synthesized in order to control pH change upon irradiation with UV and visible light. Upon irradiation with 313 nm light, these open-ring isomers were transformed to thermally unstable colored isomers in methanol solution. During the storage of the photoirradiated diarylethene solutions in the dark for 10 min, the thermally unstable closed-ring isomers were converted to thermally stable keto isomers. The structures of these isomers were characterized by 1H NMR and X-ray crystallography. The keto isomers were transformed to the initial phenol isomer upon irradiation with visible light. Additionally, we also found the formation of a novel photochromic diarylethene derivative having one keto group on the cyclopentane ring during UV irradiation. A pH change between the two isomers was observed in a mixture of ethanol and water.
The present invention provides a compound represented by the formula (I): wherein each symbol is as defined in the description, or a salt thereof. The compound or a salt thereof or a prodrug thereof has a GPR40 receptor function modulating action and is useful as an insulin secretagogue or an agent for the prophylaxis or treatment of diabetes and the like.
The present invention provides a compound represented by the formula (I):
wherein each symbol is as defined in the description, or a salt thereof. The compound or a salt thereof or a prodrug thereof has a GPR40 receptor function modulating action and is useful as an insulin secretagogue or an agent for the prophylaxis or treatment of diabetes and the like.
Fused cyclic compounds as GPR40 receptor modulators
申请人:Takeda Pharmaceutical Company Limited
公开号:EP2248812A2
公开(公告)日:2010-11-10
The present invention provides a pharmaceutical composition comprising a compound represented by the formula (I):
wherein each symbol is as defined in the description, or a salt thereof, in combination with a dipeptidyl peptidase IV inhibitor, an insulin preparation, a PPAR function modulator, an α-glucosidase inhibitor, a biguanide, a sulfonylurea, mitiglinide or calcium salt hydrate thereof or nateglinide.
本发明提供了一种药物组合物,其中包含由式 (I) 代表的化合物:
其中各符号如描述中所定义,或其盐与二肽基肽酶 IV 抑制剂、胰岛素制剂、PPAR 功能调节剂、α-葡萄糖苷酶抑制剂、双胍类、磺酰脲类、米格列奈或其钙盐水合物或纳格列奈联合使用。