Phenolic glucosides from Prunus grayana |
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| Institution: | 1. From the Division of Surgical Oncology and Endocrine Surgery, Vanderbilt University, Nashville, Tennessee;2. Department of Medicine, Stanford University, Palo Alto, California;3. Department of Medicine, Eastern Virginia Medical School, Norfolk, Virginia;4. Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York;5. Department of Otolaryngology, Massachusetts General Hospital, Boston, Massachusetts. |
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| Abstract: | A new bitter phenylpropanoid glucoside, 2-(4-hydroxyphenyl)-ethyl-(6-O-caffeoyl)-β-D-glucopyranoside and a new bitter tannin-related compound, 3,4,5-trimethoxybenzoyl-β-D-glucopyranoside, have been isolated together with known compounds, 2-(3,4-dihydroxyphenyl)-ethyl-(6-O-caffeoyl)-β-D-glucopyranoside, 2-(3,4-dihydroxyphenyl)-ethyl-β-D-glucopyranoside and 6-O-caffeoyl-D-glucopyranose, from the bark of Prunus grayana. The structures of these compounds have been established on the basis of spectroscopic studies and chemical evidence. |
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