Using CC(C)(C)OC(=O)N1CCCNCC1, O=C(O)CC(O)(CC(=O)O)C(=O)O to produce CC(C)(C)OC(=O)N1CCCN(C(=O)C2(O)CCC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.