668272-67-1

Carbamic acid,[1-[2,3,6,7-tetrahydro-1-[2-(3-methoxy-2-nitrophenyl)-2-oxoethyl]-3-methyl-7-(3-methyl-2-butenyl)-2,6-dioxo-1H-purin-8-yl]-3-piperidinyl]-,1,1-dimethylethyl ester