You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[(6S)-3-butylsulfanyl-6-(2-hexoxyphenyl)-6H-[1,2,4]triazino[5,6-d][3,1]benzoxazepin-7-yl]ethanone into its molecular formula.
user
C28H34N4O3S
assistant