英文别名(R)-2-((3R,8S,9R,10R,13R,14S,16R,17R)-3-(((2S,3R,4S,5R)-4,5-Dihydroxy-3-(((2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-16-hydroxy-4,4,9,13,14-pentamethyl-11-oxo-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-5-isopropyl-2-methylfuran-3(2H)-one; piefeltarraenin a; (1R,4R,9β,16α,17ξ)-16-Hydroxy-9,10,14-trimethyl-11,22-dioxo-20,24-epoxy-4,9-cyclo-9,10-secocholesta-5,23-dien-1-yl 2-O-(6-deoxyhexopyranosyl)pentopyranoside; (1R,4R,9β,16α)-16-Hydroxy-9,10,14-trimethyl-11,22-dioxo-21,24-epoxy-4,9-cyclo-9,10-secocholesta-5,23-dien-1-yl 2-O-(6-deoxy-α-L-mannopyranosyl)-β-D-xylopyranoside 
