Two new dammarane-type triterpene sapogenins from Chinese red ginseng

<div><p>Two new dammarane-type triterpene sapogenins were isolated from the Chinese red ginseng. The new sapogenins were named as 24,26-dihydroxy-panaxdiol (<b>1</b>) and 24-hydroxy-panaxdiol (<b>2</b>). Their structures were elucidated by the combined analysis of NMR and mass spectrometry as 20(<i>S</i>),25(<i>R</i>)-epoxydammarane-3β,12β,24β,26-tetraol (<b>1</b>) and 20(<i>S</i>),25-epoxydammarane-3β,12β,24α-triol (<b>2</b>). The complete signal assignments of the two compounds were carried out by 2D NMR spectral and NOE differential spectroscopy analysis.</p></div

Additional file 1 of The AGE-RAGE axis associates with chronic pulmonary diseases and smoking in the Rotterdam study

Supplementary Material