Shingu K, Fujii H, Mizuki K, Ueda I, Yahara S, Nohara T
Faculty of Pharmaceutical Sciences, Kumamoto University, Japan.
Phytochemistry. 1994 Jul;36(5):1307-14. doi: 10.1016/s0031-9422(00)89657-0.
Six new ergostane glycosides, designated as petunioside A, petunioside B, 24-epipetunioside B, petunioside C, 24-epipetunioside C and petunioside D, were isolated from the methanolic extract of the fresh aerial parts of Petunia hybrida. Their structures were determined by means of spectroscopic analysis and single crystal X-ray analysis.