Amurensiosides A–K, 11 new pregnane glycosides from the roots of Adonis amurensis
摘要:
Five new pregnane tetraglycosides, amurensiosides A-E (1-5), two new pregnane hexaglycosides, amurensiosides F(6) and 1(9), two new 18-norpregnane hexaglycosides,amurensiosides G (7) and H (8), and two new pregnane octaglycosides, amurensiosides J (10) and K(11), were isolated from the MeOH extract of the roots of Adonis amurensis. The structures of the new compounds were determined on the basis of extensive spectroscopic analysis, including two-dimensional (2D) NMR data, and the results of hydrolytic cleavage. The isolated compounds were evaluated for their cytotoxic activity against HSC-2 human oral squamous cell carcinoma cells. (C) 2009 Elsevier Inc. All rights reserved.
Five new pregnane tetraglycosides, amurensiosides A-E (1-5), two new pregnane hexaglycosides, amurensiosides F(6) and 1(9), two new 18-norpregnane hexaglycosides,amurensiosides G (7) and H (8), and two new pregnane octaglycosides, amurensiosides J (10) and K(11), were isolated from the MeOH extract of the roots of Adonis amurensis. The structures of the new compounds were determined on the basis of extensive spectroscopic analysis, including two-dimensional (2D) NMR data, and the results of hydrolytic cleavage. The isolated compounds were evaluated for their cytotoxic activity against HSC-2 human oral squamous cell carcinoma cells. (C) 2009 Elsevier Inc. All rights reserved.