Synthesis of the AB spiroketal subunit of spongistatin 1 (altohyrtin A): The Pyrone approach
作者:Michael T Crimmins、David G Washburn
DOI:10.1016/s0040-4039(98)01629-3
日期:1998.10
The synthesis of the AB spiroketal fragment of spongistatin 1 (altohyrtin A) has been accomplished utilizing the addition of a metalated pyrone to an aldehyde followed by acid catalyzed spirocyclization. A stereoselective copper (I) promoted conjugate addition of vinylmagnesium bromide was used to establish the C11 stereogenic center.
利用将金属化的吡喃酮加成到醛中,然后进行酸催化的螺环化,已经完成了海绵体抑素1(altyryrtin A)的AB spiroketal片段的合成。使用立体选择性铜(I)促进的溴化乙烯基镁共轭加成来建立C11立体中心。