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Two New Buxus Alkaloids from Buxus Microphylla Sieb. et Zucc. |
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| Authors: | Du Jiang Qiu Ming-hua Nie Rui-lin Lü Yang Wu Nan and Zheng Qi-tai |
| Abstract: | Five compounds were isolated from Buxus microphylla Sieb. et Zucc. Based on the physico-chemical constants and spectral analysis (IR, MS, 1H-NMR and 13C-NMR), they were identified as cycloprotobuxinamine ( Ⅰ ), buxmicrophylline A ( Ⅱ ), buxtauine M ( Ⅲ ), isoscopoletin (Ⅳ) and epi-lupeol ( Ⅴ ). ( Ⅰ ) and ( Ⅱ ) were new compounds. The structure of buxmicrophylline ( Ⅱ ) was confirmed by X-ray crystallographic analysis. |
| Keywords: | Buxus microphylla Buxus alkaloid:Cycloprotobuxinamin Buxmicrophylline A |
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