Veitch Gemma E, Pinto Andrea, Boyer Alistair, Beckmann Edith, Anderson James C, Ley Steven V
Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
Org Lett. 2008 Feb 21;10(4):569-72. doi: 10.1021/ol7027898. Epub 2008 Jan 15.
The synthesis of five natural products (3, 6, 7, 10, and 14), isolated from the Indian neem tree Azadirachta indica, is reported from a common intermediate (2). The judicious choice of transacetalization conditions allows efficient access to both the azadirachtinin (9 and 10) and the azadirachtin (3, 6, 7, and 14) skeletons.
据报道,从印度楝树印楝(Azadirachta indica)中分离出的五种天然产物(3、6、7、10和14)可由一个共同中间体(2)合成。通过明智地选择缩醛交换条件,可以有效地构建印楝素(9和10)和印楝素(3、6、7和14)骨架。