Novel 2-Amino-1,4-dihydropyridine Calcium Antagonists. II. Synthesis and Antihypertensive Effects of 2-Amino-1,4-dihydropyridine Derivatives Having N,N-Dialkylaminoalkoxycarbonyl Groups at 3- and/or 5-Position.
potency than those with acyclic amino moieties. Chemical modification studies indicated that the two ester side-chains of 1,4-dihydropyridine at the 3- and 5-position might function in a different manner in relation to the antihypertensive activities. 3-(1-Benzhydrylazetidinited potent and long-lasting antihypertensive effects with gradual onset of action, and is a promising candidate as an antihypertensive
Regio- and Diastereoselective Decarboxylative Coupling of Heteroaromatic Alkanes
作者:Shelli R. Waetzig、Jon A. Tunge
DOI:10.1021/ja070116w
日期:2007.4.1
diastereoselectivity and high regioselectivity for coupling at the more substituted allyl terminus. It is proposed that this unusual combination of selectivities results from a tandem allylation/aza-Coperearrangement sequence. After allylation, decarboxylative dearomatization produces an intermediate for the aza-Coperearrangement. The subsequent aza-Coperearrangement occurs under mild conditions
The TWIK-related K+ channel, TREK-1, has recently emerged as an attractive therapeutic target for the development of a novel class of analgesic drugs. It has been reported that TREK-1 -/- mice were more sensitive than wild-type mice to painful stimuli, suggesting that activation of TREK-1 could result in pain inhibition. Here we report the synthesis of a series of substituted caffeate esters (12a-u) based on the hit compound CDC 2 (cinnamyl 3,4-dihydroxyl-alpha-cyanocinnamate). These analogs were evaluated for their ability to modulate TREK-1 channel by electrophysiology and for their in vivo antinociceptive activity (acetic acid induced-writhing assay) leading to the identification a series of novel molecules able to activate TREK-1 and displaying potent analgesic activity in vivo. (C) 2014 Elsevier Masson SAS. All rights reserved.
Novel caffeic acid derivatives: extremely potent inhibitors of 12-lipoxygenase