(2R,3R,4R,5R)-4-(Acetoxy)-2-(6-[(2,2-diphenylethyl)amino]-2-{[({[2-(1-piperidinyl)ethyl]amino}carbonyl)amino]methyl}-9H-purin-9-yl)-5-(2-ethyl-2H-tetrazol-5-yl)tetrahydro-3-furanyl acetate (HCID 59094530)|Huagongshe