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[Coumarins from root of Zanthoxylum dimorphophyllum var. spinifolium]
Zhao-Yang Tao1, Wan-Sheng Chen, Wei-Dong Zhang
1College of Pharmacy, Second Military Medical University, Shanghai 200433, China.
Objective:
To study the chemical components from dried roots of Zanthoxylum dimorphophyllum var. spinifoliun.
Method:
The chemical components were isolated by low pressure column chromatography and their structures were identified by spectroscopic methods.
Result:
Five compounds were isolated and identified as 6-(2', 3'-dihydroxy-3'-methyl-butyl)-7-hydroxy-5-methoxy-2H-1-benzopyran-2-one (I), 6-(2',3'-dihydroxy-3'-methyl-butyl)-7-methoxy-8-(3'-methyl-but-2'-enyl)-2H-1-benzopyran-2-one (II),6-(2',3'-dihydroxy-3'-methyl-butyl)-7-hydroxy-2H-1-benzopyran-2-one (III), 6-(2', 3'-oxiranyl-3'-methyl-butyl)-7-methoxy-8- (3-methyl-but-2-enyl)-2H-1-benzopyran-2-one (IV), 7-methoxy-8-(3'-methyl-but-2'-enyl)-2H-1-benzopyran-2-one (V).
Conclusion:
These compounds were isolated from the plant for the first time.
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