A novel rearrangement of eudesmanolide enol ester epoxide: facile 1-step construction of the salvialane sesquiterpene skeleton
作者:Wu Jiong Xia、De Run Li、Lei Shi、Yong Qiang Tu
DOI:10.1016/s0957-4166(01)00255-5
日期:2001.6
A novel carbon–carbon rearrangement for the eudesmanolide sesquiterpene enol ester epoxide in the presence of a catalytic amount of Lewis acids (3–10 mol%) or an excess of NaOMe is disclosed. This reaction was developed to give a facile, one-step procedure for the construction of naturally occurring and bioactive salvialane sesquiterpenes. The reaction conditions were investigated extensively and a
公开了在催化量的路易斯酸(3-10 mol%)或过量的NaOMe存在下,对马氏倍半萜烯倍半萜烯烯醇酯环氧化物的新型碳-碳重排。开发该反应可为构建天然存在且具有生物活性的丹参烷倍半萜烯提供简便,一步式的程序。对反应条件进行了广泛的研究,并讨论了可能的反应机理。