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Complete assignment of the 1H and 13C NMR spectra of four triterpenes of the ursane, artane, lupane and friedelane groups

✍ Scribed by Josinete S. Alves; Janiza C. M. de Castro; Maisa O. Freire; Emidio V. Leitão da-Cunha; José Maria Barbosa-Filho; Marcelo Sobral de Silva

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
96 KB
Volume
38
Category
Article
ISSN
0749-1581

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✦ Synopsis

The detailed 1 H and 13 C NMR assignments of the four known triterpenes 3ˇ-hydroxyurs-12-en-28oic acid, 3-oxo-24-methylenecycloartan, 3-oxo-11˛-hydroxy-20(29)lupen and 29-hydroxyfriedelin, isolated from three Brazilian plants, were achieved by 1D and 2D techniques such as DEPT, HETCOR, HMQC, HMBC, COSY and NOESY.

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