THE STUDIES ON THE NMR SPECTRA OF DIHYDROBENZOFURAN LIGNANS

Chinese Journal of Magnetic Resonance ›› 1997, Vol. 14 ›› Issue (5): 425-429.

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THE STUDIES ON THE NMR SPECTRA OF DIHYDROBENZOFURAN LIGNANS

Gao Feng¹, Li Xian², Wu Lijun², Li Wen²

1 Beijing Clinical Pharmacy Institute, Beijing 100035;
2 Shenyang Pharmaceutical University, Shenyang 110015

Received:1997-04-14 Revised:1997-05-16 Published:1997-10-05 Online:2018-01-22

Abstract

Abstract: The chemical structure of dihydrobenzofuran lignans Balanophonin(1) was studied by 2D NMR spectra analyses. It was observed that the attached position of methoxyl and hydroxyl groups in A ring can be determined by analysing the cross peaks in COLOC spectrum. Meanwhile, the speciality of PMR spectra (in DMSO-d₆) of this kind of compounds was studied. All the proton signals of Balanophonin (1) were assigned in detail also.

Key words: Silymarin, Dihydrobenzofuran lignans, Attached position, COLOC, PMR

Gao Feng, Li Xian, Wu Lijun, Li Wen. THE STUDIES ON THE NMR SPECTRA OF DIHYDROBENZOFURAN LIGNANS[J]. Chinese Journal of Magnetic Resonance, 1997, 14(5): 425-429.

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THE STUDIES ON THE NMR SPECTRA OF DIHYDROBENZOFURAN LIGNANS

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