Synthetic studies on the compounds related to neocarzinostatin chromophore. 3. Novel synthesis of a chiral cyclic dienediyne system
作者:Kazuhiko Nakatani、Katsuko Arai、Shiro Terashima
DOI:10.1016/s0040-4020(01)80546-9
日期:1993.2
synthesis of the chiral 10-membered dienediynes (2 and 3) related to neocarzinostatin chromophore was accomplished by utilizing cyclization of an epoxy acetylene as a key step. The epoxy acetylene was prepared from the (Z)-dienediyne diol which could be obtained by coupling reaction of the (Z)-enol triflates (5) with the optically active acetylene diol (25) derived from D-xylose.
通过利用环氧乙炔的环化作为关键步骤,完成了与新carzinostatin发色团有关的手性10元二烯二炔(2和3)的新型合成。由(Z)-二烯二炔二醇制备环氧乙炔,其可以通过将(Z)-烯醇三氟甲磺酸酯(5)与衍生自D-木糖的光学活性乙炔二醇(25)偶联反应而获得。