You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by (2Z)-2-[(4-tert-butylphenyl)methylidene]-4-methyl-8-(2-thiophen-2-ylethyl)-7,9-dihydrofuro[2,3-f][1,3]benzoxazin-3-one ?
user
C28H29NO3S
assistant