Title of article :
Argeloside A and B, two novel 14,15-secopregnane glycosides from Solenostemma argel
Author/Authors :
Plaza، نويسنده , , Alberto and Bifulco، نويسنده , , Giuseppe and Hamed، نويسنده , , Arafa I. and Pizza، نويسنده , , Cosimo and Piacente، نويسنده , , Sonia، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2003
Abstract :
Argeloside A and B, two novel 14,15-secopregnane glycosides characterized by the presence of two hemiketal functions involved in two five-membered rings, were isolated from Solenostemma argel fruits. Their structures have been established by ESIMS and NMR experiments. In particular the relative configuration of the molecules has been defined by combining the available NMR data with quantum chemical calculations of the geometries and 13C chemical shifts.
Keywords :
Solenostemma argel , 15-Secopregnane glycosides , NMR , GIAO , DFT calculations , 14
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
