You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R)-4-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]pentanoyl]oxymethyl 1-ethyl-6-oxo-3-phenyl-5-(pyridin-3-ylamino)pyridazine-4-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H37N5O7
assistant