Studies on the constituents of asclepiadaceae plants. LIII. The structures of glaucogenin-A, -B, and -C mono-D-thevetoside from the chinese drug "pai-ch'ien," Cynanchum glaucescens Hand-Mazz.
Studies on the constituents of asclepiadaceae plants. LIV. The structures of glaucoside-F and -G from the chinese drug "pai-ch'ien," Cynanchum glaucescens Hand-Mazz.