Synthesis of new simplified hemiasterlin derivatives with α,β-unsaturated carbonyl moiety.
Bioorg Med Chem Lett 2014;
24:2244-6. [PMID:
24745968 DOI:
10.1016/j.bmcl.2014.03.091]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 03/26/2014] [Accepted: 03/27/2014] [Indexed: 11/25/2022]
Abstract
In this Letter, we report a convenient and efficient method for the synthesis of new simplified derivatives of hemiasterlin in which the α,α-dimethylbenzylic moiety A is replaced by α,β-unsaturated aryl groups as Michael acceptor. Most of these derivatives have a strong cytotoxic activity on three human tumor cell lines (KB, Hep-G2 and MCF7). Analogs 17b and 17f showed a high cytotoxicity against KB and Hep-G2 cancer cell lines comparable to paclitaxel and ellipticine.
Collapse