You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R)-2-[[(E)-3-[1-[(4-methoxyphenyl)methyl]pyrazolo[3,4-b]pyridin-3-yl]prop-2-enoyl]amino]-3-phenylpropyl]carbamic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H27N5O4
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