You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 2-[4-(7-amino-5-methylpyrazolo[1,5-a]pyrimidin-2-yl)phenyl]-4-[[(2,4-dimethylphenyl)-methoxyphosphoryl]amino]-1,3-thiazole-5-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H27N6O4PS
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