Application of the Ugi reaction with multiple amino acid-derived components: synthesis and conformational evaluation of piperazine-based minimalist peptidomimetics
作者:Mattia Stucchi、Silvia Cairati、Rengul Cetin-Atalay、Michael S. Christodoulou、Giovanni Grazioso、Gennaro Pescitelli、Alessandra Silvani、Deniz Cansen Yildirim、Giordano Lesma
DOI:10.1039/c5ob00218d
日期:——
The concurrent employment of α-amino acid-derived chiral components such as aldehydes and α-isocyanoacetates, in a sequential Ugi reaction/cyclization two-step strategy, opens the door to the synthesis of three structurally distinct piperazine-based scaffolds, characterized by the presence of L-Ala and/or L-Phe-derived side chains and bearing appropriate functionalities to be easily applied in peptide
在连续的Ugi反应/环化两步策略中,同时使用α-氨基酸衍生的手性组分(例如醛和α-异氰基乙酸酯)为合成三种结构上不同的哌嗪基支架打开了大门,其特征在于的存在大号-Ala和/或大号-衍生自Phe的侧链,具有适当的功能,可轻松应用于肽化学中。通过计算研究,已证明这些支架充当极简肽模拟物,能够模拟明确定义的肽二级结构范围,因此潜在地可用于合成小分子PPI调节剂。对两种不同的耐药肝细胞癌细胞株的初步生物学评估表明,其分化与耐药能力似乎与明确定义的PPI类型密切相关,已显示出对所选化合物有希望的抗增殖活性。