[(10R,13R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] N-[6-[(4R)-4-[[(4R)-1-[6-[[(2S)-2,6-bis[5-[3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxypentanoylamino]hexanoyl]amino]hexanoyl]-4-hydroxypyrrolidin-2-yl]methoxy-hydroxyphosphoryl]oxy-2-(3-dihydroxyphosphinothioyloxypropyl)pyrrolidin-1-yl]-6-oxohexyl]carbamate