期刊
NATURAL PRODUCT RESEARCH
卷 22, 期 6, 页码 483-488出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786410600906426
关键词
nyssaceae; davidia involucrata; branch bark; phenolic compounds
Two new phenolic water-soluble constituents, involcranoside A (1) and involcranoside B (2) have been isolated along with five known phenolic compounds: 3,4-dimethoxyphenyl-O--D-gluco-pyranoside (3), picein (4), and 1,4-dihydroxy-3-methoxy-phenyl-4-O--D-glucopyranoside (5), leonuriside A (6) and 4-hydroxy-3-methoxybenzoic acid (7) from the branch bark of Davidia involucrata. Identification of their structures was achieved by 1D and 2D NMR experiments, including 1H-1H COSY, NOESY, HMQC and HMBC methods and FAB mass spectral data.
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