Assessment of chemoselective neoglycosylation methods using chlorambucil as a model.

Assessment of chemoselective neoglycosylation methods using chlorambucil as a model.
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DOI:
10.1021/jm101024j
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发表时间:
2010-11-25
影响因子:
7.3
通讯作者:
Thorson JS
Thorson JS
中科院分区:
医学1区
文献类型:
--
作者:
Goff RD;Thorson JS

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To systematically assess the impact of glycosylation and the corresponding chemoselective linker upon the anticancer activity/selectivity of the drug chlorambucil, herein we report the synthesis and anticancer activities of a 63-member library of chlorambucil-based neoglycosides. A comparison of N-alkoxyamine-, N-acyl hydrazine- and N-hydroxyamine-based chemoselective glycosylation of chlorambucil revealed sugar-and linker-dependent partitioning among open and closed-ring neoglycosides and corresponding sugar-dependent variant biological activity. Cumulatively, this study represents the first neoglycorandomization of a synthetic drug and expands our understanding of the impact of sugar structure upon product distribution/equilibria in the context of N-alkoxyamino-, N-hydroxyamino- and N-acyl hydrazine-based chemoselective glycosylation. This study also revealed several analogs with increased in vitro anticancer activity, most notably D-threoside 60 (NSC 748747), which displayed much broader tumor specificity and notably increased potency over the parent drug.
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