Using Clc1ccccn1, CCOC(=O)c1cccc(Sc2cc(N)n[nH]2)c1 to produce O=C(O)c1cccc(Sc2cc(Nc3ccccn3)n[nH]2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.