Hegab MI, Abdulla MM. 4-Chloro-2,2-disubstituted Chromen-3-carboxaldehyde: Synthesis of some Fused Polycyclic Heterocycles as Anti-inflammatory, Analgesic, Anticonvulsant, and Antiparkinsonian Agents.
Arch Pharm (Weinheim) 2006;
339:41-7. [PMID:
16411175 DOI:
10.1002/ardp.200500124]
[Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Some new aldazino 4, pyrazolo 5, thieno 8, and thiooxopyrimidino chromenes 10 were prepared via reaction of the corresponding beta-chlorocarboxaldehyde 3 with hydrazine hydrate, mercaptoacetic acid, and thiourea, respectively. Wherever, 4-chlorochromene derivatives 2 along with 4-chlorochromen-3-carboxaldehyde derivatives 3 were prepared from the corresponding ketone 1 with Vilsmeier-Haack reagent. Some of the new products showed good anti-inflammatory, analgesic, anticonvulsant, and antiparkinsonian activities comparable to indomethacin, diclofenace, carbamazepine, and benztropine.
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