Coumarins from the heartwoods of Mansonia gagei Drumm.
Three coumarins and three known mansonones were isolated from the heartwood of Mansonia gagei Drumm. The structures of the three coumarins were elucidated as 3,8-dimethyl-5-isopropyl-6-methoxycoumarin (mansonrin A) 3,8-dimethyl-5-isopropyl-6-hydroxycoumarin (mansorin B) and 2,3-dihydro-3,6,9-trimethyl naphtho[1,8-bc]pyran-7-oxa-8-one (mansorin C) by analyses of physical properties and spectroscopic data. The cytotoxicity of the isolated compounds against brine shrimp Artemia salina Linn. was also evaluated.
Tiew
Pattara
P
Natural Products Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
Puntumchai
Apiruk
A
Kokpol
Udom
U
Chavasiri
Warinthorn
W
D003374:Coumarins / Q000737:chemistry / Q000302:isolation & purification*; D019660:Malvaceae / Q000737:chemistry*; D015394:Molecular Structure; D013057:Spectrum Analysis
C586322:3,8-dimethyl-5-isopropyl-6-methoxycoumarin; D003374:Coumarins