THE STUDIES ON2D NMR SPECTRA OF TWO CHROMONE DERIVATIVES

Chinese Journal of Magnetic Resonance ›› 1998, Vol. 15 ›› Issue (3): 285-289.

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THE STUDIES ON₂D NMR SPECTRA OF TWO CHROMONE DERIVATIVES

Yi Yijun¹, Yang Dalong¹, Cao Zhengzhong¹, Cao Yuan¹, Wu Yongping¹, Zhao Shouxun²

1. Jiangsu Province Institute of Materia Medica, Nanjing 210009;
2. China Pharmaceutical University, Nanjing 210009

Received:1997-12-01 Revised:1998-01-19 Published:1998-06-05 Online:2018-01-13

Abstract

Abstract: The structures of two flavones, 5,7-dihydroxy chromone 3-0-α-L-rhamnoside(1) and 7,6'-dihydroxy 3'-methoxylisofavone (2), isolated from Smilax glabra were studied by 2D NMR spectra analyses. The attached positions of substituted groups in 1 and B ring of 2 can be determined by illustrating the COLOC and ¹H-¹H COSY spectra. All the proton and carbon signals of 1 were assigned in detail also.

Key words: Smilax glabra, Chromone, Isoflavone, 2D NMR, COLOC

Yi Yijun, Yang Dalong, Cao Zhengzhong, Cao Yuan, Wu Yongping, Zhao Shouxun. THE STUDIES ON₂D NMR SPECTRA OF TWO CHROMONE DERIVATIVES[J]. Chinese Journal of Magnetic Resonance, 1998, 15(3): 285-289.

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THE STUDIES ON₂D NMR SPECTRA OF TWO CHROMONE DERIVATIVES

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