论文部分内容阅读
本文用园二色谱(cD)对七个倍半萜内酯中B、c环的稠合方式、及化合物的绝对构型进行了研究.
In this paper, the condensation of the B and C rings in seven sesquiterpene lactones and the absolute configuration of the compounds were studied by using circular dichroism (CD).