Objective To study the chemical constituents from the fruits of Citrus medica.var.sarcodactylis.Methods The chemical constituents were isolated and purified by silica gel,Sephadex LH-20 gel column chromatography,ODS and semi-preparation HPLC.The structures of all isolates were determined on the basis of NMR and MS analysis.Results Atotal of 26 compounds were isolated from the 95％EtOH extract of C.medica var.sarcodactylis,which were identified as chrysophanic acid(1),physcion(2),emodin(3),aloeemodin(4),kakuol(5),2-methoxy-4,5-methylenedioxypropiophenone(6),methoxylatifolone(7),honokiol(8),arctigenin(9),matairesinol(10),epipinoresinol(11),lappaol F(12),arctium B(13),isolappaol A(14),lappaol A(15),3-(1,3-benzodioxol-5-yl)-1,2-propanediol(16),lappaol B(17),syringaresinol(18),rutaecarpine(19),pellitorine(20),asaroidoxazine B(21),casticin(22),2-(3,4-dimethoxyphenyl)-3,5,8-trihydroxy-7-methoxy-4H-1-benzopyran-4-one(23),2-(3,4-dimethoxyphenyl)-5,6,7-trihydroxy-3-methoxy-4H-1-benzopyran-4-one(24),(22E,24R)-5α,8α,-epidioxyergosta-6,9,22-triene-3β-ol(25)and ergosterol peroxide(26).Conclusion All compounds were isolated from the fruits of C.medica var.sarcodactylis for the first time.This study provides certain study basis for the utilization of C.medica.var.sarcodactylis.
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