The alkaloids of the leaves of Alstonia macrophylla Wall. (Fam. Apocynaceae)
The ethereal extract of the leaves of Alstonia macrophylla Wall. (Fam. Apocynaceae) showed by thin layer chromatography the presence of five tertiary alkaloids and the absence of quaternary alkaloids. Of the alkaloids present, alkaloid x was isolated as white needle-like crystals, m.p. 210-212(degre...
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| 格式: | Thesis |
| 语言: | English |
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