Dramatically Accelerated Addition Under Solvent-Free Conditions: An Efficient Synthesis of (<i>E</i>)-1,2,4-Triazole-Substituted Alkenes from Baylis–Hillman Acetates
作者:Weihui Zhong、Yongzhi Zhao、Baoming Guo、Peng Wu、Weike Su
DOI:10.1080/00397910802136623
日期:2008.9.12
Abstract The addition of 1,2,4-triazole to Baylis–Hillman acetates mediated by Et3N was dramatically accelerated under solvent-free conditions to afford (E)-1,2,4-triazole-substituted alkenes 3 with excellent yields.
likely due to poor permeability. Therefore, we rationally modified the structure of the hit compound with the aim of promoting their passage through the outer cell membrane porins. The new series was evaluated on the recombinant enzyme fromSalmonella enterica serovar Typhimurium, with several compounds able to keep nanomolar binding affinity despite the extent of chemical manipulation.