Allelopathic prenylflavanones from the fallen leaves of Macaranga tanarius.
Two new prenylflavanones, tanariflavanones A (1), and B (2), and one known compound, (-)-nymphaeol-C (3), were isolated from the fallen leaves of Macaranga tanarius. Compounds 1 and 2 showed inhibition of radical growth of lettuce seedlings at 200 ppm. Their structures were elucidated primarily by NMR, circular dichroism, and mass spectroscopic methods.
Tseng
M H
MH
Department of Botany, National Taiwan University, Taipei, Taiwan 106, Republic of China.
Chou
C H
CH
Chen
Y M
YM
Kuo
Y H
YH
D002942:Circular Dichroism; D019665:Euphorbiaceae / Q000737:chemistry*; D044950:Flavanones; D005419:Flavonoids / Q000737:chemistry*; D006540:Herbicides / Q000737:chemistry* / Q000302:isolation & purification / Q000633:toxicity; D018545:Lactuca / Q000254:growth & development; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013624:Taiwan
D044950:Flavanones; D005419:Flavonoids; D006540:Herbicides; C433625:tanariflavanone A; C433626:tanariflavanone B