ARYL DIHYDROPYRIDINONE AND PIPERIDINONE MGAT2 INHIBITORS
申请人:Bristol-Myers Squibb Company
公开号:US20130143843A1
公开(公告)日:2013-06-06
The present invention provides compounds of Formula (I):
or a stereoisomer, or a pharmaceutically acceptable salt thereof, wherein all of the variables are as defined herein. These compounds are monoacylglycerol acyltransferase type 2 (MGAT2) inhibitors which may be used as medicaments.
Improved Conditions for the Formation of Tetrazoles
作者:P. R. Bernstein、E. P. Vacek
DOI:10.1055/s-1987-28199
日期:——
Tetrazoles can be prepared from nitriles and sodium azide in improved yield over shorter reaction time using triethylammonium chloride as the catalyst and 1-methyl-2-pyrrolidinone as the solvent.
An efficient and economical synthesis of 5-substituted 1H-tetrazoles via Pb(II) salt catalyzed [3+2] cycloaddition of nitriles and sodium azide
作者:Rama Kant、Vishal Singh、Alka Agarwal
DOI:10.1016/j.crci.2015.11.016
日期:2016.3
Résumé A simple, mild and efficient method is developed for the synthesis of 5-substituted 1H-tetrazoles. Out of three used Pb(II) catalysts, lead chloride (PbCl2) has been found to be an efficient catalyst for [3+2] cycloaddition of NaN3 with aromatic and aliphatic nitriles to afford 5-substituted 1H-tetrazoles. The catalyst is reusable up to four cycles with consistent activity. The cost effectiveness and easy availability of the catalyst, simple methodology, excellent yield and easy work-up are the additional advantages. Supplementary Materials: Supplementary material for this article is supplied as a separate file: mmc1.docx
Monodisperse Pt NPs@rGO as highly efficient and reusable heterogeneous catalysts for the synthesis of 5-substituted 1H-tetrazole derivatives
作者:İbrahim Esirden、Esma Erken、Muharrem Kaya、Fatih Sen
DOI:10.1039/c5cy00864f
日期:——
oxide (Pt NPs@rGO) are stable, isolable, bottleable, long-lived, highlyefficient and exceptionally reusable heterogeneouscatalysts for the synthesis of 5-substituted1H-tetrazolesfromsodiumazide and various aromatic nitriles with great catalytic performance. Pt NPs@rGO have been used for the first time for these types of synthesis reactions and these NPs were characterized by transmission electron
A rapid and novel method for the synthesis of 5-substituted 1H-tetrazole catalyzed by exceptional reusable monodisperse Pt NPs@AC under the microwave irradiation
作者:Esma Erken、İbrahim Esirden、Muharrem Kaya、Fatih Sen
DOI:10.1039/c5ra11426h
日期:——
The catalytic performance of these new NPs were investigated for the synthesis of 5-substituted1H-tetrazoles, in which they were found to be exceptional reusable, isolable, stable and highlyefficientheterogeneouscatalyst. All prepared tetrazole products were obtained with perfect yield by using current heterogeneouscatalyst and characterized by melting points, FT-IR, 1H-NMR, 13C-NMR and HRMS analyzes