Becker DP, Flynn DL, Villamil CI. Bridgehead-methyl analog of SC-53116 as a 5-HT4 agonist.
Bioorg Med Chem Lett 2004;
14:3073-5. [PMID:
15149647 DOI:
10.1016/j.bmcl.2004.04.021]
[Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2004] [Revised: 04/06/2004] [Accepted: 04/10/2004] [Indexed: 11/24/2022]
Abstract
Pyrrolizidine benzamide (+/-)-2, the bridgehead-methyl analog of SC-53116, was prepared and evaluated for 5-HT(4) agonism activity in the rat tunica muscularis (TMM) mucosae assay. Compound (+/-)-2 has an EC(50) of 449 nM in the TMM assay, as compared to 23 nM for SC-53116, and 66 nM for the racemate of SC-53116.
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