Regioslective Hydride Reduction of 2-(N-cyanoimino)thiazolidine Derivatives
摘要:
Treatment of 3-alkyl-2-(N-cyanoimino)thiazolidines with lithium aluminum hydride caused reductive cleavage of the imino double bond to afford 3-alkylthiazolidines, while diisobutylaluminum hydride reduction of 3-alkyl- and 3-sulfonyl derivatives resulted in the nitrile reduction or imino-nitrile bond cleavage to give 2-formyliminothiazolidines and/or 2-iminothiazolidines.
The present invention relates to a compound of the Formula (I)):
or pharmaceutically acceptable salt thereof, wherein the symbols are as defined in the specification; a pharmaceutical composition comprising the same, a method for treating or preventing viral infections, inflammation, dry eye, central nervous disorders, cardiovascular diseases, cancer, obesity, diabetes, muscular dystrophy, and hair loss.
11B Nuclear magnetic resonance study of the reactivity of borane tetrahydrofuran with representative dithianes, diazolidines, thiazolidines, benzothiazolines and benzothiazoles
作者:Rosalinda Contreras、Hilda R. Morales、Ma. de Lourdes Mendoza、Cesar Dominguez
DOI:10.1016/0584-8539(87)80197-6
日期:1987.1
Sequential Ring Expansion and Ketene Elimination Reactions in the Novel Rhodium(I)-Catalyzed Carbonylation of Thiazolidines
作者:Kanjai Khumtaveeporn、Howard Alper
DOI:10.1021/ja00092a016
日期:1994.6
1,3-Thiazolidines react with carbon monoxide, in the presence of catalytic quantities of chloro(1,5-cyclooctadiene)rhodium(I) dimer and potassium iodide, to give thiazolidinones in 56-88% yields. Reaction in the absence of KI afforded the six-membered ring thiazin-3-one, The rhodium(I) complex can catalyze the quantitative conversion of the thiazin-3-one to the thiazolidinone under carbon monoxide, with ketene as the reaction by-product. The conversion of thiazolidines to thiazolidinones involves a novel regiospecific insertion of carbon monoxide into one of two ring carbon-nitrogen bonds, as well as a metal-catalyzed ketene elimination process.
NOVEL TYROSINE KINASE INHIBITORS
申请人:ChemBridge Corporation
公开号:EP2262807B1
公开(公告)日:2015-08-12
NOVEL CYCLOSPORIN DERIVATIVES FOR THE TREATMENT AND PREVENTION OF A VIRAL INFECTION