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  • Title: [Selective isolation of isopsoralen from crude extract of Psoralea corylifolia. L by using inclusion method of host-guest molecules].
    Author: Guo WS, Guo F, Xu ZX, Zheng QT, Lu Y.
    Journal: Yao Xue Xue Bao; 2000 Nov; 35(11):864-7. PubMed ID: 11218868.
    Abstract:
    AIM: To isolate the chemical components from extracted crude of Psoralea corylifolia L. METHODS: Applicate the function of molecular recognition in supramolecular chemistry, use 1,1,6,6-tetraphenylhexa-2,4-diyne-1,6-diol as the host molecule and chemical components in extracted crude of Psoralea corylifolia L. as guest molecules, which represent different from either in sort, quantity and sites of function groups or in structural topological character, 1,1,6,6-tetraphenylhexa-2,4-diyne-1,6-diol could selectively form inclusion compound with component endowed with interactional complementarity and isolate as crystalline from the extracted crude of Psoralea corylifolia L. RESULTS: The isopsoralen as guest molecule is selectively included by 1,1,6,6-tetraphenylhexa-2,4-diyne-1,6-diol in inclusion crystal and removed by acetone from the inclusion compound and total yield is 0.18%. Isopsoralen is determined by UV, IR, 1HNMR and MS and its inclusion compound is determined by means of IR, powder XRD and single crystal XRD. The isolation effect is analyzed by GC/MS. CONCLUSION: The method is simple and selective for isolation isopsoralen from extracted crude of Psoralea corylifolia L.
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