Using O=Cc1ccccc1, COCCOc1cccc(-c2cc3cc(N)cnc3[nH]2)c1 to produce COCCOc1cccc(-c2cc3cc(NCc4ccccc4)cnc3[nH]2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.