An efficient method for one-pot synthesis of isomeric ellipticine derivatives through CuI/La(OTf)3 catalyzed sequential inter/intramolecular cyclization of substituted alkynes with imines followed by aromatization is reported in good to excellent yields.
据报道,通过CuI / La(OTf)3催化亚炔基与
亚胺的连续炔间/分子内环化继而芳构化的一锅法合成
玫瑰树碱衍
生物的有效方法,收率良好。