Synthesis and biological activity of a novel series of indole-derived PPARγ agonists
作者:Brad R. Henke、Kimberley K. Adkison、Steven G. Blanchard、Lisa M. Leesnitzer、Robert A. Mook、Kelli D. Plunket、John A. Ray、Claudia Roberson、Rayomand Unwalla、Timothy M. Willson
DOI:10.1016/s0960-894x(99)00603-4
日期:1999.12
The synthesis and structure-activity relationships of a novel series of indole 5-carboxylicacids that bind and activate peroxisome proliferator-activated receptor gamma (PPARgamma) are reported. These new analogs are selective for PPARgamma vs the other PPAR subtypes, and the most potent compounds in this series are comparable to in vitro potencies at PPARgamma reported for the thiazolidinedione-based
A Simple Route for the synthesis of Oxazepine-2-One Systems using Chlorosulfonyl Isocyanate
作者:E. Sampath Kumar、Durga Nath Dhar
DOI:10.1080/00397919508015870
日期:1995.7
Abstract Reaction between the 1-aroyl-2-arylcyclopropane (cyclopropyl chalcone) with chlorosulfonylisocyanate leads to the formation of seven membered heterocyclic product, namely, oxazepine-2-one.
A highly efficient approach to (Z)-conjugated enynes has been developed by utilizing an Au(III)-catalyzed ring opening reaction of 1-cyclopropyl-2-yn-1-ols with nucleophiles under mild conditions; the method is valuable due to the excellent yield and high regio- and stereoselectivity.
regiodivergent and stereoselective ring-opening isomerization of vinylcyclopropane was developed with cobalt catalysis. Employing the commercially available Xantphos ligand, the reactions afforded exclusively linear-type 1,3-dienes as the products. Interestingly, when switching the ligand to an amido-diphosphine ligand (PNP), branched-type 1,3-dienes were obtained with high regioselectivity and stereoselectivity