作者:Ana Rodríguez、Miguel Nomen、Bernd Werner Spur、Jean-Jacques Godfroid
DOI:10.1002/(sici)1099-0690(199910)1999:10<2655::aid-ejoc2655>3.0.co;2-2
日期:1999.10
An asymmetric total synthesis of Prostaglandin E1 (5) has been achieved in a two-component coupling process. The chiral hydroxycyclopentenone 6 was readily available from furan with 96% ee. The key reaction step was a kinetic enzymatic resolution followed by an in situ inversion. A catalytic asymmetric reduction of the γ-iodo vinyl ketone 19 with the Corey CBS catalyst gave the ω-side chain 7 with
前列腺素 E1 (5) 的不对称全合成已在双组分偶联过程中实现。手性羟基环戊烯酮 6 很容易从呋喃中获得,ee 为 96%。关键的反应步骤是动力学酶解,然后是原位反转。用 Corey CBS 催化剂催化不对称还原 γ-碘代乙烯基酮 19 得到具有 >96% ee 的 ω-侧链 7。使用与二硫氰基铜酸盐的反应进行共轭加成,随后甲硅烷基保护基的温和裂解和甲酯 22 的酶促水解得到高产率的 (-)-PGE15。