7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidine; 7H-Pyrrolo[2,3-d]pyrimidine, 7-[[2-(trimethylsilyl)ethoxy]methyl]-; trimethyl-[2-(pyrrolo[2,3-d]pyrimidin-7-ylmethoxy)ethyl]silane