Using CC(C)(C)OC(=O)N1CCC(OCC(=O)O)CC1, NNC(=O)c1ccncc1 to produce CC(C)(C)OC(=O)N1CCC(OCC(=O)NNC(=O)c2ccncc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.