You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 4-[2-[4-(6-cyclopropyl-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)piperidin-1-yl]ethyl]-1,4-oxazepan-3-one into SMILES representation.
user
O=C1COCCCN1CCN1CCC(C2=NN=C3C=CC(C4CC4)=NN23)CC1
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