Using CCOC(=O)c1cc(NC2CCCC2)c2[nH]c(-c3ccccc3)cc2c1 to produce O=C(O)c1cc(NC2CCCC2)c2[nH]c(-c3ccccc3)cc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.