You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (2R,3R,4S)-1-(cyclohexanecarbonyl)-4-(hydroxymethyl)-3-[4-[2-(2-methoxyphenyl)ethynyl]phenyl]azetidine-2-carbonitrile into its molecular formula.
user
C27H28N2O3
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