A Convenient Synthesis of Immunosuppressive Agent FTY720 Using the Petasis Reaction
作者:Shigeo Sugiyama、Satoshi Arai、Matsuri Kiriyama、Keitaro Ishii
DOI:10.1248/cpb.53.100
日期:——
A convenient synthesis of immunosuppressive agent FTY720 (1) using the Petasis reaction was developed. 4-Octylbenzaldehyde (9) was converted into 1-ethenyl-4-octylbenzene (11) by two-step synthesis. Hydroboration of 11 using catecholborane and hydrolysis gave (E)-2-(4-octylphenyl)vinylboronic acid (4). The Petasis reaction of 4, dihydroxyacetone (3), and benzylamine following catalytic hydrogenation afforded FTY720 (1).
我们开发了一种利用 Petasis 反应合成免疫抑制剂 FTY720 (1) 的简便方法。通过两步合成法将 4-辛基苯甲醛 (9) 转化为 1-乙烯基-4-辛基苯 (11)。用邻苯二酚硼烷对 11 进行氢硼化合和水解,得到 (E)-2-(4-辛基苯基)乙烯基硼酸(4)。4、二羟基丙酮(3)和苄胺在催化加氢后发生 Petasis 反应,得到 FTY720(1)。