You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (2R,4S)-4-[(3-carboxy-3-methylbutanoyl)amino]-2-methyl-5-(4-phenylphenyl)pentanoic acid;ethyl (2R,4S)-4-amino-2-methyl-5-(4-phenylphenyl)pentanoate is given. What is its corresponding molecular formula?
user
C44H54N2O7
assistant