作者:Chun-Fang Wu、Xin Zhao、Wen-Xian Lan、Chunyang Cao、Jin-Tao Liu、Xi-Kui Jiang、Zhan-Ting Li
DOI:10.1021/jo300063u
日期:2012.5.4
C–H···O hydrogen-bonding formed between the triazole C-5 H atom and the two ether O atoms. Such folded structures make this 1,4-diphenyl-1,2,3-triazole skeleton a good candidate to be used as β-turn mimic. To prove this, the formation of a β-hairpin structure induced by this β-turn motif has been further demonstrated.
已经设计和制备了一系列结合有1,4-二苯基-1,2,3-三唑的酰胺衍生物。X射线晶体学和(1D和2D)1 H NMR研究表明,这些化合物折叠成稳定的U形构象,这是由三唑C-5 H原子之间形成的三中心分子内C–H···O氢键驱动的和两个醚O原子。这种折叠结构使该1,4-二苯基-1,2,3-三唑骨架成为用作β-turn模拟物的良好候选者。为了证明这一点,已经进一步证明了由该β-转角基序诱导的β-发夹结构的形成。