Using O=C(O)c1cccc2cc(-c3cccc4cnccc34)ccc12, Nc1nccs1 to produce O=C(Nc1nccs1)c1cccc2cc(-c3cccc4cnccc34)ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.