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Synthesis and bioactivity of a side chain bridged paclitaxel: A test of the T-Taxol conformation.

ABSTRACT: A knowledge of the bioactive tubulin-binding conformation of paclitaxel (Taxol()) is crucial to a full understanding of the bioactivity of this important anticancer drug, and potentially also to the design of simplified analogs. The bioactive conformation has been shown to be best approximated by the T-Taxol conformation. As a further test of this conclusion, the paclitaxel analog 4 was designed as a compound which has all the chemical functionality necessary for activity, but which cannot adopt the T-Taxol conformation. The synthesis and bioassay of 4 confirmed its lack of activity, and thus provided further support for the T-Taxol conformation as the bioactive tubulin-binding conformation.

SUBMITTER: Hodge M

PROVIDER: S-EPMC2684938 | biostudies-literature | 2009 May

REPOSITORIES: biostudies-literature

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Synthesis and bioactivity of a side chain bridged paclitaxel: A test of the T-Taxol conformation.

Hodge Mathis M Chen Qiao-Hong QH Bane Susan S Sharma Shubhada S Loew Maura M Banerjee Abhijit A Alcaraz Ana A AA Snyder James P JP Kingston David G I DG

Bioorganic & medicinal chemistry letters 20090321 10

A knowledge of the bioactive tubulin-binding conformation of paclitaxel (Taxol()) is crucial to a full understanding of the bioactivity of this important anticancer drug, and potentially also to the design of simplified analogs. The bioactive conformation has been shown to be best approximated by the T-Taxol conformation. As a further test of this conclusion, the paclitaxel analog 4 was designed as a compound which has all the chemical functionality necessary for activity, but which cannot adopt ...[more]

PMID: 19359169

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