Using COc1c(OC)c2c(c(OC)c1C(=O)O)C1C=CC2C1, O=C1CCC(=O)N1O to produce COc1c(OC)c2c(c(OC)c1C(=O)ON1C(=O)CCC1=O)C1C=CC2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.