Using Nc1nc(Nc2ccc3c(c2)OCO3)nn1-c1ccc(C(=O)O)cc1, C1COCCN1 to produce Nc1nc(Nc2ccc3c(c2)OCO3)nn1-c1ccc(C(=O)N2CCOCC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.