You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4R,4aS,7aR,12bS)-N-(4-chloro-2-methylphenyl)-3-(cyclopropylmethyl)-4a,9-dihydroxy-7-oxo-2,4,5,6,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinoline-6-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H29ClN2O5
assistant