Using c1ccc(-c2cc3c(ccn4cnnc34)nc2-c2ccc(C3OCCO3)cc2)cc1 to produce O=Cc1ccc(-c2nc3ccn4cnnc4c3cc2-c2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.