Using CCOC(=O)c1cccc(Nc2cnc(OC)c3c2CCCC3)c1 to produce CCOC(=O)c1cccc(Nc2c[nH]c(=O)c3c2CCCC3)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.