Using O=C1CCC(c2ccc(-n3ccnc3-c3ccccc3)cc2)=NN1 to produce O=c1ccc(-c2ccc(-n3ccnc3-c3ccccc3)cc2)n[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.