6-(Trimethylsilyl)-7-(methylsulfonyl)-2-methyl-4-phenyl-7H-pyrrolo[2,3-d]pyrimidine C??? ??, ??, ??

6-(Trimethylsilyl)-7-(methylsulfonyl)-2-methyl-4-phenyl-7H-pyrrolo[2,3-d]pyrimidine ?? ?? ? ???

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6-(Trimethylsilyl)-7-(methylsulfonyl)-2-methyl-4-phenyl-7H-pyrrolo[2,3-d]pyrimidine ?? ??