2-[1-[(2~{r})-2-(2-Methoxyphenyl)-2-(Oxan-4-Yloxy)ethyl]-5-Methyl-6-(1,3-Oxazol-2-Yl)-2,4-Bis(Oxidanylidene)thieno[2,3-D]pyrimidin-3-Yl]-2-Methyl-Propanamide