作者:Jean Louis Reymond、Guiti K. Jahangiri、Catherine Stoudt、Richard A. Lerner
DOI:10.1021/ja00063a009
日期:1993.5
The hydrolysis of alkyl enol ethers to their corresponding carbonyl compounds proceeds by rate determining protonation of the β-carbon to form an activated oxocarbonium ion intermediate and is catalyzed by acids (Kresge, A. J.; Chiang, Y. J. Chem. Soc. B 1967, 53). It can be catalyzed by antibodies with very high enantioselectivity of protonation at the β-carbon to form optically pure carbonyl compounds
烷基烯醇醚水解为其相应的羰基化合物是通过确定 β-碳质子化的速率进行的,以形成活化的氧代碳正离子中间体,并由酸催化 (Kresge, AJ; Chiang, YJ Chem. Soc. B 1967, 53) . 它可以被 β-碳质子化具有极高对映选择性的抗体催化,形成光学纯的羰基化合物 (Reymond, J.-L.; Janda, KD; Lerner, RAJ Am. Chem. Soc. 1992, 114, 2257 )。在本研究中,抗体 14D9 (anti-1) 催化的烯醇醚 4 在 pH=3.1 和 pH=7.2 之间的对映选择性水解的 pH 曲线已在 20 o C 下在 H 2 O 和 D 2 O 中进行测量
Heterocyclic compound
申请人:Murata Toshiki
公开号:US20110015225A1
公开(公告)日:2011-01-20
The present invention provides to a compound having melanin-concentrating hormone receptor antagonistic action and low toxicity, and useful as a agent for the prophylaxis or treatment of obesity and the like.
The present invention relates to a compound represented by the formula (I):
wherein each symbol is as defined in the specification, or a salt thereof.
The present invention provides to a compound having melanin-concentrating hormone receptor antagonistic action and low toxicity, and useful as a agent for the prophylaxis or treatment of obesity and the like.
The present invention relates to a compound represented by the formula (I):
wherein each symbol is as defined in the specification, or a salt thereof.