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[Chemical constituents of Eucommia ulmoides].

Shuangyan Wang, Lin‐Fen Ding, Xing‐De Wu, Haiyin Wang, Qin‐Shi Zhao, Liu‐Dong Song

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Abstract

OBJECTIVE: To study the chemical compositions of Eucommia ulmoides. METHODS: The compounds were isolated and purified from Eucommia ulmoides by silica gel column chromatography, Sephadex LH-20, MPLC packed with MCI gel and semi-preparative HPLC. The structures of these compounds were established on the basis of spectral analyses (1H-NMR, 13C-NMR and MS). RESULTS: Thirteen compounds were obtained,and their structures were identified as betulin (1), syringin (2), pervoside A (3), glucosyringic acid (4), vanillic acid-beta-glucoside (5), geniposide acid (6), aucubin (7), geniposide (8), pinoresinol-4,4'-di-O-beta-D-glucopyranoside (9), syringaresinol di-O-beta-D-glucopyranoside (10), medioresinol di-O-beta-D-glucopyranoside (11), sucrose (12), and ethyl beta-glucopyranoside (13) on the basis of physical characteristics and spectral data. CONCLUSION: Compounds 3 - 5, 12 and 13 are isolated from this plant for the first itme.

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What this paper is about

OBJECTIVE: To study the chemical compositions of Eucommia ulmoides. METHODS: The compounds were isolated and purified from Eucommia ulmoides by silica gel column chromatography, Sephadex LH-20, MPLC packed with MCI gel and semi-preparative HPLC. The structures of these compounds were established on the basis of spectral analyses (1H-NMR, 13C-NMR and MS). RESULTS: Thirteen compounds were obtained,and their structures were identified as betulin (1), syringin (2), pervoside A (3), glucosyringic acid (4), vanillic acid-beta-glucoside (5), geniposide acid (6), aucubin (7), geniposide (8), pinoresinol-4,4'-di-O-beta-D-glucopyranoside (9), syringaresinol di-O-beta-D-glucopyranoside (10), medioresinol di-O-beta-D-glucopyranoside (11), sucrose (12), and ethyl beta-glucopyranoside (13) on the basis of physical characteristics and spectral data. CONCLUSION: Compounds 3 - 5, 12 and 13 are isolated from this plant for the first itme.

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Available abstract

OBJECTIVE: To study the chemical compositions of Eucommia ulmoides. METHODS: The compounds were isolated and purified from Eucommia ulmoides by silica gel column chromatography, Sephadex LH-20, MPLC packed with MCI gel and semi-preparative HPLC. The structures of these compounds were established on the basis of spectral analyses (1H-NMR, 13C-NMR and MS). RESULTS: Thirteen compounds were obtained,and their structures were identified as betulin (1), syringin (2), pervoside A (3), glucosyringic acid (4), vanillic acid-beta-glucoside (5), geniposide acid (6), aucubin (7), geniposide (8), pinoresinol-4,4'-di-O-beta-D-glucopyranoside (9), syringaresinol di-O-beta-D-glucopyranoside (10), medioresinol di-O-beta-D-glucopyranoside (11), sucrose (12), and ethyl beta-glucopyranoside (13) on the basis of physical characteristics and spectral data. CONCLUSION: Compounds 3 - 5, 12 and 13 are isolated from this plant for the first itme.

Key concepts: Eucommia ulmoides, Chemistry, Pinoresinol, Silica gel, Sephadex, Chromatography, Column chromatography, Vanillic acid

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