922501-66-4Relevant academic research and scientific papers
Reactions of chlorine substituted (E)-2,3-diphenylpropenoic acids over cinchonidine-modified Pd: Enantioselective hydrogenation versus hydrodechlorination
Szllsi, Gy?rgy,Hermán, Beáta,Szabados, Erika,Fül?p, Ferenc,Bartók, Mihály
experimental part, p. 28 - 36 (2011/02/24)
The effect of the chlorine position on the C-Cl bond hydrogenolysis and the enantioselective hydrogenation of Cl substituted (E)-2,3-diphenylpropenoic acid derivatives has been studied over cinchonidine-modified Pd/Al2O 3. In contrast to the fast hydrodechlorination of the β-phenyl-para-Cl substituted acids the Cl on the α-phenyl ring was barely hydrogenolized. These observations were interpreted by the different arrangements of the two phenyl rings on the surface, with the α- and β-phenyl rings adsorbed tilted and parallel, respectively. The results confirmed the beneficial effect of the α-phenyl-ortho-substituents on the chiral discrimination, thus the 2,3-diphenylpropionic acids substituted by Cl on the α-phenyl ring could be prepared in good yields and optical purities. The conclusions were used for the rational design of an acid, i.e. (E)-2-(2-methoxyphenyl)-3-(3,4-difluorophenyl)propenoic acid, which afforded the best optical purity (ee up to 95% at 295 K) described until now in this heterogeneous system.
Discovery of N-[(1S,2S)-3-(4-chlorophenyl)-2-(3-cyanophenyl)-1- methylpropyl]-2-methyl-2-{[5-(trifluoromethyl)pyridin-2-yl]oxy}propanamide (MK-0364), a novel, acyclic cannabinoid-1 receptor inverse agonist for the treatment of obesity
Lin, Linus S.,Lanza Jr., Thomas J.,Jewell, James P.,Liu, Fing,Shah, Shrenik K.,Qi, Hongbo,Tong, Xinchun,Wang, Junying,Xu, Suoyu S.,Fong, Tung M.,Shen, Chun-Pyn,Lao, Julie,Xiao, Jing Chen,Shearman, Lauren P.,Stribling, D. Sloan,Rosko, Kimberly,Strack, Alison,Marsh, Donald J.,Feng, Yue,Kumar, Sanjeev,Samuel, Koppara,Yin, Wenji,Van Der Ploeg, Lex H. T.,Goulet, Mark T.,Hagmann, William K.
, p. 7584 - 7587 (2007/10/03)
The discovery of novel acyclic amide cannabinoid-1 receptor inverse agonists is described. They are potent, selective, orally bioavailable, and active in rodent models of food intake and body weight reduction. A major focus of the optimization process was to increase in vivo efficacy and to reduce the potential for formation of reactive metabolites. These efforts led to the identification of compound 48 for development as a clinical candidate for the treatment of obesity.
