Progress toward the Total Synthesis of Cassaine via the Transannular Diels−Alder Strategy
作者:Serge Phoenix、Elyse Bourque、Pierre Deslongchamps
DOI:10.1021/ol006670r
日期:2000.12.1
The transannular Diels-Alder reaction of trans-trans-trans macrocyclic triene A, bearing two cis substiuents in C(12) and C(13) as well as a gem-dimethyl in C(4), was studied. Under thermal conditions, only the desired trans-anti-cis tricycle B was obtained. This tricycle represents an advanced intermediate toward the total synthesis of cassaine C.
研究了在C(12)和C(13)中带有两个顺式取代基以及在C(4)中具有宝石二甲基的跨-反-反-大环三烯A的跨环Diels-Alder反应。在热条件下,仅获得所需的反式-反-顺式三轮车B。该三轮车代表了向总合成胱氨酸C的高级中间体。