Synthetic Studies on Stevastelins. 2. Synthesis of Lipidic- and Peptidic-Modified Analogues
作者:Francisco Sarabia、Samy Chammaa、Miguel García-Castro
DOI:10.1021/jo050628y
日期:2005.9.1
The synthesis of a series of stevastelin analogues with modification of the susbstituent at the C-2 position of the stearic acid chain (compounds 28 and 31), variation of the amino acids (compounds 41, 42, 73, and 78), or lacking the lipidic chain (compound 91) is described. The replacement of l-valine and l-threonine with other amino acids proceeded without difficulties for the synthesis of analogues
与硬脂酸链的C-2位的susbstituent的变形例(化合物一系列stevastelin类似物的合成28和31),(化合物的氨基酸变异41,42,73,和78),或缺乏描述了脂质链(化合物91)。更换升-缬氨酸和升与没有用于类似物的合成困难进行其他氨基酸苏氨酸41和42 ; 然而,取代升丝氨酸用简单的氨基酸,例如甘氨酸或升-丙氨酸被证明是难以捉摸的,其被认为是构象柔韧性的因素。最后,用1-缬氨酸或1-苏氨酸进行取代而没有困难地分别提供类似物73和78。