Conjugates of Catecholamines. 6. Synthesis and β-Adrenergic Activity of N - (Hydroxyalkyl)catecholamine Derivatives
作者:Allen B. Reitz、Mitchell A. Avery、Roberto P. Rosenkranz、Michael S. Verlander、Kenneth L. Melmon、Brian B. Hoffman、Yasio Akita、Neal Castagnoli、Murry Goodman
DOI:10.1021/jm50001a018
日期:1985.5
A new series of catecholamines has been prepared in which the N-alkyl substituent of dl-epinephrine or dl-isoproterenol has been extended by a methylene chain terminated by a hydroxyl group or derived functionality (e.g., carbamate or ester). These functionalized catecholamines (congeners) and model compounds were prepared with the goal of eventual attachment to polymeric carrier molecules. The beta-adrenergic agonist activity of the derivatives was evaluated in vitro by measuring the intracellular accumulation of cyclic AMP in S49 mouse lymphoma cells and by the displacement of iodocyanopindolol (ICYP). A n-butylcarbamate derivative (compound 15) was the most active compound in this series with a potency 190 times greater than dl-isoproterenol in the S49 assay. The biological results indicate that minor modifications in structure in the N-alkyl substituent of the catecholamine can influence the pharmacologic activity.
Sulfonate Catalyst and Method of Producing Alcohol Compound Using the Same
申请人:Utsumi Noriyuki
公开号:US20080234525A1
公开(公告)日:2008-09-25
A sulfonate catalyst represented by the formula below and a ketone compound are placed in a solvent, and the ketone compound is hydrogenated by mixing in the presence of hydrogen to produce an optically active alcohol.
Structure-affinity profile of 8-hydroxycarbostyril-based agonists that dissociate slowly from the β2-adrenoceptor
作者:M. D. Deyrup、S. T. Nowicki、N. G. J. Richards、D. H. Otero、J. K. Harrison、S. P. Baker
DOI:10.1007/pl00005339
日期:1999.3.5
its k(off). Only those derivatives with the lowest k(off)-values induced a decrease in the receptor density of DDT cell membranes following a preincubation and extensive washing. The data show that the 8-hydroxycarbostyril nucleus in conjunction with substitutions on the tertiary alpha carbon of the side chain and positioning of the phenyl group are important characteristics determining the high affinity