Flavonoids from Cleistocalyx operculatus.
Two flavonoids 3'-formyl-4',6'-dihydroxy-2'-methoxy-5'-methylchalcone and (2S)-8-formyl-5-hydroxy-7-methoxy-6-methylflavanone together with five known compounds, were isolated from the dried buds of Cleistocalyx operculatus. Their structures were determined on the basis of spectroscopic analyses (UV, IR, EIMS, (1)H, (13)C NMR and HMBC).
Ye
Chun-Lin
CL
State Key Laboratory of Bioreactor Engineering, Institute of Biochemistry, East China University of Science and Technology, Shanghai 200237, China.
Lu
Yan-Hua
YH
Wei
Dong-Zhi
DZ
D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D035264:Flowers / Q000737:chemistry; D015394:Molecular Structure; D027822:Myrtaceae / Q000737:chemistry*; D019906:Nuclear Magnetic Resonance, Biomolecular
D005419:Flavonoids