Using O=C(O)CCNCCc1ccccc1, CNCCc1ccc(C2=NCCN2C(=O)OC(C)(C)C)cc1 to produce CC(C)(C)OC(=O)N1CCN=C1c1ccc(CCNCC(=O)CCNCCc2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.