You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3S,4R,7S,8S,8aR)-8-(2-chloro-3-fluoropyridin-4-yl)-7-[(3E,5E)-5-chloro-3-(methylamino)hepta-1,3,5-trien-2-yl]-3',3'-bis(fluoromethyl)-7-hydroxy-3,4-diphenylspiro[3,4,8,8a-tetrahydropyrrolo[2,1-c][1,4]oxazine-6,1'-cyclobutane]-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C37H36Cl2F3N3O3
assistant