Using COc1c(C(=O)O)cc(C)n(C)c1=O, O=C1CCC(=O)N1O to produce COc1c(C(=O)ON2C(=O)CCC2=O)cc(C)n(C)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.