Site-Selective Switching Strategies to Functionalize Polyazines.
Site-Selective Switching Strategies to Functionalize Polyazines.
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DOI:
10.1021/jacs.8b04530
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发表时间:
2018-06-27
影响因子:
15
通讯作者:
McNally A
中科院分区:
文献类型:
--
作者:
Dolewski RD;Fricke PJ;McNally A
Many drug fragments and therapeutic compounds contain multiple pyridines and diazines. Developing site-selective reactions where specific C–H bonds can be transformed in polyazine structures would enable rapid access to valuable derivatives. We present a study that addresses this challenge by selectively installing a phosphonium ion as a versatile functional handle. Inherent factors that control site-selectivity are described along with mechanistically driven approaches for site-selective switching, where the C–+PPh3 group can be predictably installed at other positions in the polyazine system. Simple protocols, readily available reagents and application to complex drug-like molecules make this approach appealing to medicinal chemists.
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