Synthesis and In Vitro Evaluation of Taxol oxetane ring D precursors.
Synthesis and In Vitro Evaluation of Taxol oxetane ring D precursors.
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DOI:
10.1016/j.tetlet.2010.02.033
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发表时间:
2010-04-14
影响因子:
1.8
通讯作者:
Croteau RB
中科院分区:
文献类型:
--
作者:
Kaspera R;Cape JL;Faraldos JA;Ketchum RE;Croteau RB
A series of potential taxoid substrates was prepared in radiolabelled form to probe in vitro for the oxirane formation step and subsequent ring expansion step to the oxetane (ring D) presumably involved in the biosynthesis of the anticancer agent Taxol. None of the taxoid test substrates underwent transformation in cell-free systems from Taxus suggesting that these surrogates bore substitution patterns inappropriate for recognition or catalysis by the target enzymes, or that taxoid oxiranes and oxetanes arise by independent biosynthetic pathways.
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