You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule oxetan-3-yl 4-[6-[4-[(3S)-3-methoxypiperidin-3-yl]phenyl]pyrrolo[1,2-b]pyridazin-4-yl]piperazine-1-carboxylate ?
user
C27H33N5O4
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