| 19673385 |
Guo J, Zhang P, Zhang Z: [Studies on chemical constituents from bee-collected rape pollen] . Zhongguo Zhong Yao Za Zhi. 2009 May;34(10):1235-7.
OBJECTIVE: To study the chemical constituents of the bee-collected rape pollen. METHOD: The compounds were isolated by column chromatography on silica gel; Sephadex LH-20 and C18. Their structures were elucidated on the basis of spectral analysis. RESULT: Nine compounds were isolated from the bee-collected rape pollen and the structures of them were kaemferol-3-O-beta-D-glucosyl-(2--> 1)-beta-D-glucoside (1), kaemferol-3,4'-di-O-beta-D-glucoside (2), quercetin-3-O-beta-D-glucosyl-(2--> 1)-beta-D-glucoside (3), nicotinic acid (4), nicotinamide (5), trans-p-coumaric acid-4-O-beta-D-glucopyranoside (6), kaemferol (7), beta-sitosterol (8) and 5-hydroxymethylfurfural (9). CONCLUSION: Compounds 1-6 were isolated from the bee-collected rape pollen for the first time. |
6(0,0,1,1) |