666816-96-2

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