You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1S,3S,4Z,12S,13R)-18-(2,5-dimethylphenyl)-3-ethyl-15-[(2R)-1-hydroxypropan-2-yl]-2,10-dioxa-15,18-diazatetracyclo[11.8.0.01,16.03,12]henicosa-4,20-diene-11,14,17-trione is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H38N2O6
assistant