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  • Title: Justicia lignans VI--prostalidin D, a new arylnaphthalide lignan from Justicia diffusa var. prostrata C.B. Clarke.
    Author: Rajasekhar D, Subbaraju GV, Pillai KR.
    Journal: J Asian Nat Prod Res; 2000; 2(4):289-300. PubMed ID: 11249611.
    Abstract:
    A new arylnaphthalide lignan, prostalidin D (6) was isolated as a minor metabolite from Justicia diffusa var. prostrata. 6 contains a rare catechol unit and its structure was confirmed by total synthesis. In addition, seven known lignans, namely, justicidin E (7), helioxanthin (8), justicidin A (9), medioresinol dimethyl ether (10), medioresinol (11), lariciresinol (12) and 8-methoxyisolariciresinol (13) have also been isolated from the same source and identified by direct comparison with authentic samples.
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