2-({4-[hydroxy({[1-({4-[(methyl{2-[4-({[(2-phenylphenyl)amino]carbonyl}oxy)hexahydropyridin-1-yl]ethyl}amino)carbonyl]phenyl}methyl)hexahydropyridin-4-yl]carbonyl}amino)methyl]phenyl}carbonyl)-2,3,4,6,7,8,9,9a-octahydro-1H-pyrazino[1,2-a]pyridine-8-yl [(2-phenylphenyl)amino]methanoate