Two pyranocoumarins from the seeds of Calophyllum polyanthum

Journal of Natural Products
Chun-Hui MaGuo-Lin Zhang

Abstract

Two new pyranocoumarin diastereoisomers, calopolyanolides C (1) and D (2), were isolated from the ethanolic extract of the seeds of Calophyllum polyanthum, along with calopolyanolide A (3), calopolyanolide B (4), calanolide E2 (5), 5,7,3',4'-tetrahydroxyisoflavone (6), 3,4-dihydroxybenzoic acid (7), 3,4,5-trihydroxybenzoic acid (8), 2-hydroxy-4-methoxybenzoic acid (9), beta-sitosterol (10), beta-daucosterol (11), 3,5-dihydroxy-4-methoxybenzoic acid (12), 3,5-dimethoxybenzoic acid (13), and ursolic acid (14). Their structures were determined by MS, UV, and IR data and HMQC, HMBC, and NOESY experiments or by comparing them with authentic samples. X-ray crystallographic analysis confirmed the structure and relative configuration of 1.

References

Aug 1, 1996·Journal of Natural Products·T C McKeeM R Boyd
Nov 23, 2000·Journal of Natural Products·C MorelJ Bruneton
May 26, 2001·Journal of Natural Products·D GuiletJ Bruneton
Sep 29, 2001·Phytochemistry·D GuiletJ Bruneton

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Citations

Jul 16, 2010·Journal of Asian Natural Products Research·Hao ZhongQing-Qiang Yao
Apr 8, 2014·International Journal of Molecular Sciences·Te-Sheng Chang
Dec 18, 2008·Chemistry & Biodiversity·Xiao-Hui SuQing-Wen Shi
Mar 26, 2009·Chemistry & Biodiversity·Valdir Cechinel FilhoRivaldo Niero
Nov 1, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Lutfun NaharSatyajit D Sarker

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