Sulfonamide-containing (hetero)arenes are widely present in bioactive molecules. Here, we report the sulfonamidyl (hetero)arenes synthesis by the C(sp2)–H amidation from bench-stable amidyl-iminophenylacetic acids. The hypervalent iodinereagents covalently activated iminophenylacetic acids for the facile sulfonamidyl radical generation under mild photocatalytic oxidative conditions. Diversified indoles
Synthesis of 3-phenylpyrazolo[4,3-b]pyridines via a convenient synthesis of 4-amino-3-arylpyrazoles and SAR of corticotropin-Releasing factor receptor type-1 antagonists
作者:Keith Wilcoxen、Charles Q Huang、James R McCarthy、Dimitri E Grigoriadis、Chen Chen
DOI:10.1016/s0960-894x(03)00621-8
日期:2003.10
3-Phenylpyrazolo[4,3-b]pyridines were synthesized via a cyclization of 4-amino-3-phenylpyrazoles 11-13 with ethyl acetoacetate. These compounds were found to be potent CRF1 antagonists. The 2-alkylpyrazolo[4,3-b]pyridines were more polar but less active than the corresponding 1-alkyl-isomers. (C) 2003 Elsevier Ltd. All rights reserved.
Placement of sutures in tendon repairs
作者:Adam R Meir、C.E. Koshy
DOI:10.1054/bjps.1999.3305
日期:2000.3
Diquaternary salts. I. Preparation and characterization of the diquaternary salts of some diazines and diazoles