Chinese Journal of Magnetic Resonance ›› 1999, Vol. 16 ›› Issue (5): 417-422.

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STRUCTURE ELUCIDATION OF PROTOAESCIGENIN BY 2D NMR TECHNIQUES

Yang Xiuwei, ZhaoJing   

  1. Beijing Medical University, National Laboratory of Naturaland Biomimetic Drugs, Beijing 100083
  • Received:1999-04-26 Revised:1999-06-04 Published:1999-10-05 Online:2018-01-13

Abstract: Protoaescigenin is a multihydroxy oleanane-type triterpene yielded by mildacid hydrolysis of escin Ia. A series of 2D NMR techniques, including 1H-1H COSY, HMQC, HMBC and NOESY were applied in detailed assig nments of all their carbon and proton sig nals.

Key words: Protoaescigenin, 2D NMR, Full assignments of 1H and 13C NMR signals