The acyl group of an alpha-aryl-beta-keto ester was readily transferred to N-, O-, and S-nucleophiles. The transacylation from arylated diethyl 3-oxoglutarate to amines led to unsymmetrical malonic acid amide esters in high yields. The present reaction proceeded under mild conditions without formation of detectable byproducts. Only simple experimental manipulations were required. This reaction was also found to be sensitive to steric factors, which enabled the chemoselective monoacylation of diamines and amino alcohols without any modifications such as protection.
[(Arylcarbonyl)oxy]propanolamines. 1. Novel .beta.-blockers with ultrashort duration of action
作者:Sheung Tsam Kam、William L. Matier、Khuong X. Mai、Cynthia Barcelon-Yang、Robert J. Borgman、John P. O'Donnell、Herman F. Stampfli、Check Y. Sum、William G. Anderson
DOI:10.1021/jm00374a013
日期:1984.8
Novel [(arylcarbonyl)oxy]propanolamines were synthesized and investigated as potential ultrashort-acting beta-adrenergic receptor blockers. Many of these analogues exhibited good potency and short duration. The N-ureidoalkyl analogue 85 (ACC-9089) has a potency equal to propranolol and a duration of action of about 21 min in the dog. It has been selected as a candidate for further clinical study. Structure-activity relationships and structure-duration relationships for these new beta-blockers are also discussed.
SOBRON, F.;CARTON, A.;CALVO, A., QUIM. E IND. C, 34,(1988) N2, C. 1222-1225
作者:SOBRON, F.、CARTON, A.、CALVO, A.
DOI:——
日期:——
KAM, SHEUNG T.;MATIER, WILLIAM L.;PATIL, GHANSHYAM;MAI, KHUONG H. X.
作者:KAM, SHEUNG T.、MATIER, WILLIAM L.、PATIL, GHANSHYAM、MAI, KHUONG H. X.