Using O=C1Cc2cc(Cl)ccc2C(=C2CCNCC2)c2ncccc21 to produce OC1Cc2cc(Cl)ccc2C(=C2CCNCC2)c2ncccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.