Convergent synthesis of Carpatamide-A: Cytotoxic arylamine derivative from marine derived <i>Streptomyces</i> sp.
作者:Rohani Prasad Burman、Shantanu Gupta、Jyoti Bhatti、Krishan Verma、Devendra Rajak、Manjinder Singh Gill
DOI:10.1080/14786419.2018.1460837
日期:2019.4.18
total synthesis of carpatamide-A 7a, cytotoxic arylamine derivative isolated from marine derived Streptomyces sp., was achieved in twelve steps with overall yield of 24% with seven longest linear steps. In the penultimate step, dienoic acid 13 and an amino-phenylpropionic acid methyl ester core 21 were coupled to synthesize methylated derivativative of carpatamide-A 22 followed by demethylation of the
从海洋衍生的链霉菌属物种分离出的细胞毒性芳胺胺衍生物-氨基甲酰胺-A 7a的第一个全合成步骤以十二个步骤完成,总产率为24%,最长的线性步骤为七个。在倒数第二个步骤中,将二烯酸13和氨基-苯基丙酸甲酯核心21偶联以合成羧酰胺-A 22的甲基化衍生物,然后用BBr 3将该中间体脱甲基,以制备羧酰胺-A 7a。前体13和21均由容易获得的原料即异戊醛8合成和2,4-二羟基苯甲醛14。