881848-80-2

3,9-Diazabicyclo[3.3.1]non-6-ene-3,6-dicarboxylic acid,7-[4-[2-[[(1,1-dimethylethyl)dimethylsilyl]oxy]propyl]phenyl]-9-methyl-,3-(1,1-dimethylethyl) 6-ethyl ester