Diterpenoids from Calceolaria Alba

Chemical examination of the petrol ether (60-80) extract of the aerial parts of Calceolaria alba R. et Pav., collected in Santa Juana, VIII Region, Chile, resulted in the isolation of 3 new diterpenoids. Their structures have been elucidated by a study of their physical and spectral data; in particu...

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Bibliographic Details
Published in:Natural product research 2007-02, Vol.21 (2), p.141-148
Main Authors: Chamy, M. C., Piovano, M., Garbarino, J. A.
Format: Article
Language:English
Subjects:
Calceolaria alba R. et Pav
Diterpenes - chemistry
Diterpenes - isolation & purification
Diterpenoids
Ent
isopimaradienes
Magnetic Resonance Spectroscopy
Molecular Structure
Plant Extracts - chemistry
Plant Extracts - isolation & purification
Scrophulariaceae - chemistry
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Summary:Chemical examination of the petrol ether (60-80) extract of the aerial parts of Calceolaria alba R. et Pav., collected in Santa Juana, VIII Region, Chile, resulted in the isolation of 3 new diterpenoids. Their structures have been elucidated by a study of their physical and spectral data; in particular using 2 NMR spectroscopy (DEPT, 1 H- 1 H, COSY, NOESY, HMQC and HMBC).
ISSN:1478-6419
1478-6427
DOI:10.1080/14786410500262359