Generic placeholder image

Letters in Organic Chemistry


ISSN (Print): 1570-1786
ISSN (Online): 1875-6255

A New Pyranoxanthone from the Stem Bark of Calophyllum inophyllum

Author(s): Siau H. Mah, Gwendoline C.L. Ee, Mawardi Rahmani, Yun H. Taufiq-Yap, Rusea Go and Soek S. Teh

Volume 8, Issue 6, 2011

Page: [447 - 449] Pages: 3

DOI: 10.2174/157017811796064430

Price: $65


The stem bark of Calophyllum inophyllum gave one new prenylated dipyranoxanthone inophinone (1), together with two other xanthones, inophyllin A (2) and caloxanthone B (3) and three common triterpenes, friedelin (4), stigmasterol (5) and betulinic acid (6). 1D and 2D NMR spectral data (1H, 13C, DEPT, COSY, HMBC & HMQC) were used to elucidate the structures of these compounds

Keywords: Inophinone, dipyranoxanthone, Calophyllum inophyllum, Guttiferae, xanthones, inophyllin, caloxanthone, triterpenes, friedelin, stigmasterol

Rights & Permissions Print Cite
© 2024 Bentham Science Publishers | Privacy Policy