[Studies on chemical constituents in fruits of Eucalyptus globulus].
OBJECTIVE
To study the chemical constituents in the fruits of Eucalyptus globulus Labill.


METHODS
The chemical constituents were isolated by various column chromatographic methods and structurally elucidated by IR, NMR and MS evidences.


RESULTS
Fifteen compounds were obtained and identified as beta-sitosterol (1), betulinic acid (2), stigmasterol (3), euscaphic acid (4), 2a-Hydroxybetulinic acid (5), macrocarpal B (6), macrocarpal A (7), oleanolic acid (8), 3,4,3'-O-trimethylellagic acid (9), 3-O-methylellagic acid 4'-O-(2"-O-acetyl )-alpha-L-rhamnopyranoside (10), camaldulenside (cypellocarpin C, 11), 3-O-methylellagic acid 4'-O-alpha-L-rhamnopyranoside (12), 3-O-methylellagic acid (13), ellagic acid (14), and gallic acid (15).


CONCLUSIONS
Compounds 4 and 5 from genera Eucalyptus, 1, 3 and 11 from plant E. globulus, and 6, 7, 9 and 15 from the fruits of E. globulus were isolated for the first time.
Yang
Xiu-Wei
XW
State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100083, China. xwyang@bjmu.edu.cn
Guo
Qing-Mei
QM
D003509:Cyclohexanecarboxylic Acids / Q000737:chemistry / Q000302:isolation & purification*; D005052:Eucalyptus / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D010696:Phloroglucinol / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D013265:Stigmasterol / Q000737:chemistry / Q000302:isolation & purification
D003509:Cyclohexanecarboxylic Acids; D005960:Glucosides; D012717:Sesquiterpenes; D012855:Sitosterols; C417929:cypellocarpin C; C518771:macrocarpal A; C518772:macrocarpal B; C025473:gamma-sitosterol; D013265:Stigmasterol; D010696:Phloroglucinol