Using O=C1C=C(c2cccnc2Oc2ccc(Nc3ccccn3)cc2)CC1 to produce OC1C=C(c2cccnc2Oc2ccc(Nc3ccccn3)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.