Using NO, CC(=O)Oc1cc(C=O)cc2c1C(COC(N)=O)C1(OC(C)=O)ON2CC2C1N2C(C)=O to produce CC(=O)Oc1cc(C=NO)cc2c1C(COC(N)=O)C1(OC(C)=O)ON2CC2C1N2C(C)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.