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Title: | Microwave assisted synthesis of 2-(4-substituted piperazin-1-yl)-1,8-naphthyridine-3-carbonitrile as a new class of serotonin 5-HT3 receptor antagonists |
Authors: | Mahesh, R. |
Keywords: | Pharmacy Microwaves Antagonists |
Issue Date: | Oct-2004 |
Publisher: | Elsevier |
Abstract: | A series of novel 2-(4-substituted piperazin-1-yl)-1,8-naphthyridine-3-carbonitrile 6 were prepared by microwave irradiation and conventional heating. The intermediate, 2-oxo-1,2-dihydro-1,8-naphthyridine-3-carbonitrile 3, was prepared from 2-aminonicotinaldehyde 1 and ethyl cyanoacetate 2 in the presence of piperidine under solvent free condition. The synthesized compounds were evaluated for 5-HT3 antagonisms in longitudinal muscle-myenteric plexus (LMMP) preparation from Guinea pig ileum against 5-HT3 agonist, 2-methyl-5-HT. Among the compounds tested, 2-(4-allylpiperazin-1-yl)-1,8-naphthyridine-3-carbonitrile 6d showed most favorable 5-HT3 receptor antagonism in the Guinea pig ileum. |
URI: | https://www.sciencedirect.com/science/article/abs/pii/S0960894X04009618 http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/13161 |
Appears in Collections: | Department of Pharmacy |
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