You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[3-[4-[5,7-dimethyl-4-(1-oxo-1,4-thiazinan-4-yl)-5,11-dihydropyrimido[5,4-c][1,5]benzoxazepin-9-yl]piperidin-1-yl]-3-methylazetidin-1-yl]but-2-yn-1-one into its molecular formula.
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C30H38N6O3S
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