Total synthesis of thromboxane B2 starting from (R,R)-tartaric acid as a chiral pool
作者:Yukio Masaki、Kazuhiro Yoshizawa、Akichika Itoh
DOI:10.1016/s0040-4039(97)82953-x
日期:1996.12
Optically active natural thromboxane B2 (TXB2) was synthesized from (R,R)-tartaric acid as only chiral source. The synthesis was achieved through regio- and stereoselective introduction of acetate moiety at the C2-position of the 6,8-dioxabicyclo[3.2.1]octene derivative (2) to provide an acetamide derivative (6), partial ring opening of 6 to give a pyranoid (10), and construction of the C15-hydroxyl
由(R,R)-酒石酸作为唯一手性来源合成了旋光性天然血栓烷B 2(TXB 2)。合成是通过在6,8-二氧杂双环[3.2.1]辛烯衍生物(2)的C2位上选择性和立体选择性地引入乙酸酯部分提供的乙酰胺衍生物(6),部分开环为6至得到吡喃类化合物(10),并通过酒石酸在反式-烯丙基乙酸酯中的固有手性的立体定向烯丙基转移而构建TXB 2的C15-羟基(18)。