Using COC(=O)c1cc(-c2nnc(OC)n2Cc2ccccc2)c(C2CC2)cc1C to produce COC(=O)c1cc(-c2nnc(OC)[nH]2)c(C2CC2)cc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.