You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the SMILES notation of the molecule 4-(2,5-dimethylthiophen-3-yl)-1-[4-(methylaminomethyl)piperidin-1-yl]butan-1-one ?
user
CNCC1CCN(C(=O)CCCC2=C(C)SC(C)=C2)CC1
assistant