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Updated: Jun 17, 2026

High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Studies on the chemical constituents of Coleus forskohlii]
Ya-qin Wang1, Jian-ping Ma, Sheng-li Pan
1School of Pharmacy, Fudan University, Shanghai 200032, China. wangyq1219@126.com
Objective:
To study the chemical constituents in the aerial parts of Coleus forskohlii.
Methods:
The compounds were isolated by various column chromatographic methods, and their structures were identified by spectroscopic methods.
Results:
Twelve compounds were isolated and identified as chamaecydin (1), 6 alpha-hydroxydemethylcryptojaponol (2), alpha-cedrene (3), oleanolic acid (4), forskolin G (5), forskolin J (6), 1,6-diacetyl-9-deoxyforskolin (7), forskolin A (8), forskolin H (9), 6-acetyl-1-deoxyforskolin (10), betulinic acid (11), beta-sitosterol (12).
Conclusion:
Compounds 1 - 3 are isolated from Coleus genus for the first time, and compound 4 is isolated from C. forskohlii for the first time.
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