Using CC(C)(C)OC(=O)N(CCC(=O)O)CCC1CCCCC1, CN1CCOCC1 to produce CC(C)(C)OC(=O)N(CCC(N)=O)CCC1CCCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.