You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named ethyl (5S)-5-(3-methoxy-4-phenylmethoxyphenyl)-7-methyl-3-[2-oxo-2-[[(2S)-oxolan-2-yl]methylamino]ethyl]-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C31H35N3O6S
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