An NMR Study on Two Semi-Synthetic Pennogenin Saponins

Abstract

Abstract:

1D and 2D NMR, including ¹H NMR, ¹³C NMR, DEPT, HSQC, HMBC) methods were used to elucidate the structures of two semi-synthetic pennogenin compounds: pennogenin-3-O-α-L- rhamnopyranosyl-(1→2)-α-D-glucopyranoside (1) and pennogenin-3-O-{α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl-(1→4)]}-α-D-glucopyranoside (2). The ¹³C and ¹H NMR chemical shifts of these two compounds were assigned and analyzed. No identical structures were found in the natural products.

Key words: NMR, structure, 2D NMR, pennogenin saponins, semi-synthetic

CLC Number:

O482.53
O641

WANG Qiong, WANG Zhen, TAN Ning-Hua. An NMR Study on Two Semi-Synthetic Pennogenin Saponins[J]. Chinese Journal of Magnetic Resonance, 2010, 27(4): 650-660.

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