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- Title
Secondary Metabolites of Coleus amboinicus.
- Authors
Chen, C. Y.; Zhang Jian, Y. P.; Yeh, H. C.; Li, W. J.; Li, H. T.
- Abstract
Subfraction 2-3 (13.3 g) was subjected to silica gel chromatography, eluting with CH SB 2 sb Cl SB 2 sb -MeOH (100:1), and enriched gradually with MeOH, to obtain two subfractions (2-3-1-2-3-2). Subfraction 1-3 (3.6 g) was further purified on a silica gel column using I n i -hexane-acetone mixtures to obtain pheophytin a ( B 19 b , 24 mg), pheophytin b ( B 20 b , 16 mg), and aristophyll-C ( B 21 b , 6 mg). The combined MeOH extracts (121.7 g) were then evaporated and further separated into 4 fractions by column chromatography on silica gel (4.2 kg, 70-230 mesh) with gradients of I n i -hexane-CH SB 2 sb Cl SB 2 sb -MeOH. Subfraction 3-2 (6.8 g) was further purified on a silica gel column using CH SB 2 sb Cl SB 2 sb -MeOH mixtures to obtain vanillic acid ( B 15 b , 17 mg) and I o i -hydroxybenzaldehyde ( B 18 b , 9 mg).
- Subjects
METABOLITES; NORMAL-phase chromatography; PHYTOCHEMICALS; SILICA gel
- Publication
Chemistry of Natural Compounds, 2023, Vol 59, Issue 4, p778
- ISSN
0009-3130
- Publication type
Article
- DOI
10.1007/s10600-023-04110-8