为加强研究生学术交流活动,推进学术创新,特开通“研究生学术报告预告区”。我校研究生和教师可以在预告区及时发布和了解有关研究生学术报告的信息,届时参加。也可就某学术报告展开专题讨论与交流。
The author have developed a flexible strategy for constructing indolizinone- or quinolizinone-containing skeletons. These intramolecular cyclizations involve a cascade exo-type hydroamination followed by spontaneous lactamization. This method was applied in the total synthesis of camptothecin in nine steps in an new ring-forming approach. It was also used to efficiently prepare five biogenetically or structurally related natural and 35 natural-product-like molecules.