α-Nitro Ketone Synthesis Using <i>N</i>-Acylbenzotriazoles
作者:Alan R. Katritzky、Ashraf A. A. Abdel-Fattah、Anna V. Gromova、Rachel Witek、Peter J. Steel
DOI:10.1021/jo051231x
日期:2005.11.1
Readily available N-acylbenzotriazoles 2a−l (derived from a variety of aliphatic, (hetero)aromatic, and N-protected α-amino carboxylic acids) smoothly convert primary 3a−c and α-functionalized primary nitroalkanes 3d into the corresponding α-nitro ketones 5a−p in yields of 39−86% (average 63%).
Bromobenzofuran-Based Non-peptide Antagonists of Angiotensin II: GR138950, a Potent Antihypertensive Agent with High Oral Bioavailability
作者:Duncan B. Judd、Michael D. Dowle、David Middlemiss、David I. C. Scopes、Barry C. Ross、Torquil I. Jack、Martin Pass、Elvira Tranquillini、Julie E. Hobson
DOI:10.1021/jm00045a016
日期:1994.9
in particular a trifluoromethanesulfonamide, should be better absorbed after oral administration and have enhanced oral bioavailability. This led to the identification of GR138950, a potent antihypertensiveagent in the renal hypertensive rat, causing sustained falls in blood pressure after oral administration. Oral bioavailability of GR138950 in rats and dogs is high, confirming that GR138950 is well