57539-70-5Relevant articles and documents
Triterpenoid saponins of Acanthopanax nipponicus leaves
Miyakoshi, Masazumi,Shirasuna, Katsuya,Hirai, Yasuaki,Shingu, Kazushi,Isoda, Susumu,Shoji, Junzo,Ida, Yoshiteru,Shimizu, Torao
, p. 445 - 448 (2007/10/03)
Five new triterpenoid saponins, nipponosides A-E (1, 3-6), were isolated from Acanthopanax nipponicus leaves, along with a known saponin, kalopanaxsaponin G (2). Nipponosides A-E were characterized as the 28-O-α- L-rhamnopyranosyl(1-4)-β-D-glucopyranosyl(16)-β-D-glucopyranosyl ester of 3-oxohederagenin, oleanolic acid 3-O-β-D-glucopyranoside, gypsogenin 3-O- β-D-glucopyranoside, 3β,23,29-trihydroxyolean-12-en-28-oic acid, and 3β,20α,23-trihydroxy-30-nor-olean-12-en-28-oic acid, respectively. The structures of these new compounds were based on chemical and spectral methods.