Subjects: Biology >> Botany >> Applied botany submitted time 2021-12-19 Cooperative journals: 《广西植物》
Abstract： Saccharum officinarum is the main cash crops in sugar processing industry, and its leaves are characteristic Yao medicine in Guangxi Zhuang Autonomous Region with a long history. Our recent study showed that its EtOAc extract was the active part responsible for its in vitro antitumor activity. In order to clarify the chemical compositions of this part and provides some basis for it’s further development , the modern separation and purification techniques, such as silica gel column chromatography, Sephadex LH-20 column chromatography, and semi-preparative highperformance liquid chromatography were used to identify the structures of the isolates by their physical-chemical properties and modern spectral analysis. As a result, twenty compounds were isolated and identified as 3, 4-dihydroxybenzaldehyde (1), methyl 3, 4-dihydroxybenzoate(2), 3, 4-dihydroxy-benzoic acid (3), 3-hydroxy-4-methoxybenzoic acid (4),p-hydroxybenzoic acid (5), 4-hydroxybenzyl aldehyde (6), p-hydroxy-cinnamicacid (7), syringic acid (8), 3, 5dihydroxyhydroquinone (9),1-hydroxybenzoyl-4-O-α-L-rhamnopyranoside(10), phydroxybenzoyl- β-D-glucopyranoside (11), quercetin (12), tricin (13), tamarixetin (14),isorhamnetin (15), 5, 3', 4'-trihydroxy-7-methoxyflavanone (16), sternbin (17), ((E)4- (1S,3R,4R)-1-hydroxy-4,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl)but-1-en-3-o-ne(18), blumenol A (19) and thymidine (20), respectively. Compounds 1-4, 6, 9-11, 13-16, 18 and 20 were isolated and identified from this plant for the first time.
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