Using CCOC(=O)C(CCCCN=[N+]=[N-])(CCCc1cccnc1)C(=O)OCC to produce CCOC(=O)C(CCCCN)(CCCc1cccnc1)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.