Bioactive saponins and glycosides. IX. Notoginseng (2): structures of five new dammarane-type triterpene oligoglycosides, notoginsenosides-E, -G, -H, -I, and -J, and a novel acetylenic fatty acid glycoside, notoginsenic acid β-sophoroside, from the dried root of Panax notoginseng (Bunk.) F. H. Chen - Yoshikawa,M.; Murakami,T.; Ueno,T.; Hirokawa,N.; Yashiro,K.; Murakami N et,a.l. (Chem Pharm Bull, 1997)