Using CCOCCBr, COC(=O)c1ccccc1OCCN1CCC(c2c[nH]c3ccccc23)CC1 to produce CCOCCn1cc(C2CCN(CCOc3ccccc3C(=O)OC)CC2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.