Myxochelin A (1) is an inhibitor of tumor cell invasion produced by the bacterium belonging to the genus Nonomuraea. In order to obtain more potent inhibitors, a series of myxochelin analogues [2 and (S)-3-17] were synthesized through the coupling of lysine or diaminoalkane derivatives and appropriately protected hydroxybenzoate, followed by modification of functional groups and deprotection. These compounds were evaluated for their inhibitory activity against invasion of murine colon 26-L5 carcinoma cells. Among the synthetic analogues tested, compound (S)-6 which possesses carbamoyl group at C-1 was found to be the most potent antiinvasive agent and is considered to be a promising lead molecule for the antimetastasis. Compound (S)-6 was also shown to inhibit gelatinase activities of MMP-2 and MMP-9 and in vivo lung metastasis in mice. (c) 2009 Elsevier Ltd. All rights reserved.
Chemical derivatization leads to the discovery of novel analogs of azotochelin, a natural siderophore, as promising anticancer agents
作者:Nishant M. Karadkhelkar、Pranav Gupta、Leonard Barasa、Rameswari Chilamakuri、Christopher K. Hlordzi、Nikita Acharekar、Saurabh Agarwal、Zhe-Sheng Chen、Sabesan Yoganathan
DOI:10.1002/cmdc.202300715
日期:——
have been synthesized through chemical modification of the carboxylic acid handle. Our initial cytotoxicity evaluation against several cancer cell lines enabled us to discover new analogs as potent anticancer lead compounds for further medicinal chemistry efforts.