作者:I. Caroline Vaaland、Emil Lindbäck、Magne O. Sydnes
DOI:10.1016/j.tetlet.2019.01.038
日期:2019.2
2-aminophenylboronic acid hydrochloride and methyl 2-bromothiazole-4-carboxylate forming the common intermediate methyl 2-(2-aminophenyl)thiazole-4-carboxylate (8), which could be further transformed by hydrolysis, alkylation, and aminolysis to give the four title natural products. This work represents the first total synthesis of anithiactin B (2) and C (3).
anithiactins AC(的全合成1 - 3)和thiasporine A(4)已在良好的总收率得到实现。合成过程中的关键反应是2-氨基苯基硼酸盐酸盐与2-溴噻唑-4-羧酸甲酯之间的Suzuki-Miyaura交叉偶联,形成了常见的中间体2-(2-氨基苯基)噻唑-4-羧酸甲酯(8)可以通过水解,烷基化和氨解进一步转化,得到四个标题的天然产物。这项工作代表了第一个全合成的抗菊苣素B(2)和C(3)。