Using COc1cc2c(=O)n(CCCN3CCOCC3)c3c(c2cc1OCCCBr)C(=O)c1cc2c(cc1-3)OCO2, CCN to produce CCNCCCOc1cc2c3c(n(CCCN4CCOCC4)c(=O)c2cc1OC)-c1cc2c(cc1C3=O)OCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.