You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4R)-4-benzyl-5-(3-fluorobenzoyl)-12-methyl-2-oxa-5,12-diazabicyclo[12.4.0]octadeca-1(18),14,16-trien-13-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H33FN2O3
assistant