[Chemical constituents from Hedyotis diffusa].
OBJECTIVE
To investigate the chemical constituents from Hedyotis diffusa.


METHODS
The compounds were isolated and purified by various chromatographic techniques and identified by their physicochemical properties and spectral data.


RESULTS
Eight compounds had been reported in last paper, and this time eight more compounds were isolated and identified as 6-hydroxystigmasta-4,22-dien-3-one (1), 3-hydroxystigmasta-4,22-dien-7-one (2), 2-hydroxy-3-methylanthraquinone (3), 2,6-dihydroxy-3-methyl-4-methoxyanthraquinone (4), iso-scutellarein (5), isoetin (6), aesculetin (7), gypsogenic acid (8).


CONCLUSIONS
Compounds 1-3, 5-8 were obtained from the genus Hedyotis for the first time.
Huang
Weihua
W
Department of Traditional Chinese Medicinal Chemistry, Jiangsu Academy of Traditional Chinese Medicine, Nanjing 210028, China.
Li
Youbin
Y
Jiang
Jianqin
J
D032064:Hedyotis / Q000737:chemistry*; D009930:Organic Chemicals / Q000032:analysis / Q000302:isolation & purification
D009930:Organic Chemicals