A new C27-steroidal glycoside from Ophiopogon japonicus

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A new C27-steroidal glycoside with three known compounds were isolated from the tuber of Ophiopogon japonicus (Thunb.)Ker-Gawl. Based on the spectral analysis, including HRMS,1H NMR,13C NMR, DEPT, 1H-1H COSY, HMQC and HMBC, theirchemical structures were determined as pennogenin-3-O-α-α-rhamnopyranosyl-(1 → 2)-β-D-xyiopyranosyl-(1→4)-β-D-gluco-pyranoside (1), pennogenin-3-O-ct-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside (2), ophiopojaponin C (3) and ophiopogonin D (4).
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