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本文综合利用各种NMR技术研究了紫菀中两个酚性化合物的结构及立体化学.利用相敏COSY解析了相互重叠的强偶合体系,并结合分子力学计算讨论了化合物Ⅰ的构象.
In this paper, a variety of NMR techniques were used to study the structure and stereochemistry of two phenolic compounds in Aster. The phase - sensitive COZY was used to analyze the strong coupling systems which overlap each other. The conformation of compound Ⅰ was discussed in combination with molecular mechanics calculation.