Proton and carbon-13 NMR and conformation in solution of some amorphanes (quinghaosu derivatives)
作者:Anita J. Marsaioli、Fred Y. Fujiwara、Mary Ann Foglio、Nikolai Sharapin、Jin-Sheng Zhang
DOI:10.1002/mrc.1260321004
日期:1994.10
The total proton and carbon‐13 NMR assignments of quinghaosu I, II and V isolated from Artemisia annua cultivated in Brazil and of the synthetic derivatives quinghaosu alkene, ketone and epoxy are reported. The conformations and conformational equilibria of these compounds in solution were obtained from the spectral data and molecular mechanics calculations.
报道了从巴西种植的青蒿中分离的青蒿素 I、II 和 V 以及合成衍生物青蒿素烯烃、酮和环氧树脂的总质子和碳 13 NMR 归属。这些化合物在溶液中的构象和构象平衡是从光谱数据和分子力学计算中获得的。