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Microwave-assisted solvent-free synthesis of 3- (4-substituted piperazin-1-yl)alkyl imidazo 2,1-b 1,3 benzothiazol-2(3H)-ones as serotonin(3) (5-HT3) receptor antagonists
Pharmazie (2005)
  • Vijayapandi Pandy, University of Malaya
Abstract
A series of novel 3-[(4-substituted piperazin-1-yl)alkyl]imidazo[2,1-b][1,3]benzothiazol-2(3H)-ones were prepared by microwave irradiation using alumina as solid support and also by a conventional method. The compounds were characterized by spectral data and the purity was ascertained by microanalysis. The synthesized compounds were evaluated for 5-hydroxytryptamine(3) antagonisms in a longitudinal muscle-myenteric plexus preparation from guinea pig ileum against the 5-hydroxytryptamine3 agonist, 2-methyl-5-hydroxytryptamine. Among the test compounds, 3-[2-(4-methylpiperazin-1-yl)ethyl]imidazo[2,1-b][1,3]benzothiazol-2(3H)-one (3b) showed most favorable 5-hydroxytryptamine3 antagonism (pA(2) 6.7) in the isolated guinea pig ileum.
Publication Date
June, 2005
Citation Information
Vijayapandi Pandy. "Microwave-assisted solvent-free synthesis of 3- (4-substituted piperazin-1-yl)alkyl imidazo 2,1-b 1,3 benzothiazol-2(3H)-ones as serotonin(3) (5-HT3) receptor antagonists" Pharmazie Vol. 60 Iss. 6 (2005)
Available at: http://works.bepress.com/vijayapandi_pandy/3/