You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the SMILES representation of the molecule with IUPAC name 1-[(2,3-dimethoxyphenyl)-(3-methylthiophen-2-yl)methyl]piperazine ?
user
COC1=CC=CC(C(C2=C(C)C=CS2)N2CCNCC2)=C1OC
assistant