The title compound was prepared from tert butyl S 1 S 1 S, E 2, 5 dimethyl 6 oxo 6 4 2, 2, 2 trifluoroacetamido methyl phenylsulfonamido hex 4 en 3 yl methyl amino 3, 3 dimethyl 1 oxobutan 2 ylamino 3 methyl 1 oxo 3 phenylbutan 2 yl methyl carbamate according to General Procedures 3 and 7 cialis on line The scanning portion takes approximately 2 hours
