Acetamide,N-[2-[[[1-[(2,6-difluorophenyl)methyl]-6-[4-[[(ethylamino)carbonyl]amino]phenyl]-1,2,3,4-tetrahydro-2,4-dioxo-3-phenylthieno[2,3-d]pyrimidin-5-yl]methyl]methylamino]ethyl]-N-methyl-