Using CCCN1C(=O)c2ccccc2C1CC(=O)OCC, NC(N)=[NH2+] to produce CCCN1C(=O)c2ccccc2C1CC(=O)NC(=N)N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.