N-[(4R)-4-[(1R,3aR,3bR,4R,5aR,7R,9aS,9bS,11aR,11S)-7-[(2-{[(4R)-1-oxo-4-[(1R,3aS,3bR,4R,5aS,7R,9aS,9bS,11aR,11S)-4,7,11-trihydroxy-9a,11a-dimethylhexadecahydro-1H-cyclopenta[1,2-a]phenanthren-1-yl]pentyl]amino}acetyl)oxy]-4,11-dihydroxy-9a,11a-dimethylhexadecahydro-1H-cyclopenta[1,2-a]phenanthren-1-yl]-1-oxopentyl]glycine