Asymmetric total synthesis of ISP-I (myriocin, thermozymocidin), a potent immunosuppressive principle in the isaria sinclairii metabolite
作者:Shigeki Sano、Yoshimaro Kobayashi、Tatsuya Kondo、Maki Takebayashi、Shigeki Maruyama、Tetsuro Fujita、Yoshimitsu Nagao
DOI:10.1016/0040-4039(95)00219-3
日期:1995.3
Asymmetric total synthesis of ISP-I has been achieved by utilizing highly selective E-olefin formation based on the Schlosser-modified Wittig reaction and highly diastereoselective aldol reactions employing both chiral heterocyclic derivatives, 3-acetyl-(4S)-isopropyl-1,3-thiazolidine-2-thione and ethyl [(5R)-2,5-dihydro-5-isopropyl-3,6-diethoxypyrazin]-2-yl carboxylate.
通过利用基于Schlosser修饰的Wittig反应的高选择性E-烯烃形成和使用手性杂环衍生物3-乙酰基-(4 S)-异丙基-1的高非对映选择性醛醇缩合反应,可以实现ISP-1的不对称全合成。3-噻唑烷-2-硫酮和[(5 R)-2,5-二氢-5-异丙基-3,6-二乙氧基吡嗪] -2-基羧酸乙酯。