Muscarinic acetylcholine receptors (mAChRs) comprise five distinct subtypes denoted M1 to M5. The antagonism of M2 subtype could increase the release of acetylcholine from vesicles into the synaptic cleft and improve postsynaptic functions in the hippocampus via M1 receptor activation, displaying therapeutic potentials for Alzheimer’s disease. However, drug development for M2 antagonists is still challenged
Design, Synthesis and Evaluation of Novel 9-substituted Carbazole Derivatives as Potential Anticancer Agents
作者:Nitin Kumar、Devender Pathak
DOI:10.2174/1570180812666150430002118
日期:2015.9.9
energy. Above mentioned compounds were synthesized by starting with carbazole and characterized by FTIR, 1H-NMR, 13C-NMR, MASS spectrometry and elemental analysis. All the synthesized compounds were evaluated for their anticancer activity by SRB assay method against Human Breast Cancer Line (MCF7). All the tested compounds showed moderate to good anticancer activity. Compound 3d and 6c exhibited highest
Two new families of human farnesyltransferase inhibitors 13a-m and 14a-d, based on a phenothiazine scaffold, were synthesized. Compounds 14a and 14b were the most promising inhibitors of human farnesyltransferase with IC50 values of 0.7 and 0.6 mu M, respectively. (C) 2012 Elsevier Masson SAS. All rights reserved.
Inhibitory effect of phenothiazine- and phenoxazine-derived chloroacetamides on Leishmania major growth and Trypanosoma brucei trypanothione reductase
A number of phenothiazine-, phenoxazine- and related tricyclics-derived chloroacetamides were synthesized and evaluated in vitro for antiprotozoal activities against Leishmania major (L. major) promastigotes. Several analogs were remarkably potent inhibitors, with antileishmanial activities being comparable or superior to those of the reference antiprotozoal drugs. Furthermore, we explored the structure activity relationships of N-10 haloacetamides that influence the potency of such analogs toward inhibition of L major promastigote growth in vitro. With respect to the mechanism of action, selected compounds were evaluated for time -dependent inactivation of Trypanosoma brucei trypanothione reductase. Our results are indicative of a covalent interaction which could account for potent antiprotozoal activities. (C) 2015 Elsevier Masson SAS. All rights reserved.
Hach; Protiva, Chemicke Listy, 1953, vol. 47, p. 729,730