Adam Hendricks J, Hanson RN, Amolins M, Mihelcic JM, Blagg BS. Synthesis and preliminary evaluation steroidal antiestrogen-geldanamycin conjugates.
Bioorg Med Chem Lett 2013;
23:3635-9. [PMID:
23648180 PMCID:
PMC4123820 DOI:
10.1016/j.bmcl.2013.03.116]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 03/22/2013] [Accepted: 03/27/2013] [Indexed: 11/18/2022]
Abstract
Three novel steroidal antiestrogen-geldanamycin conjugates were prepared using a convergent strategy. The antiestrogenic component utilized the 11β-(4-functionalized-oxyphenyl) estradiol scaffold, while the geldanamycin component was derived by replacement of the 17-methoxy group with an appropriately functionalized amine. Ligation was achieved in high yield using azide alkyne cyclization reactions. Evaluation of the products against two breast cancer cell lines indicated that the conjugates retained significant antiproliferative activity.
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