Using COc1ccc2c(c1)CCC(CNCCc1ccccc1)=C2c1ccccc1 to produce Oc1ccc2c(c1)CCC(CNCCc1ccccc1)=C2c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.