Using O=C1CCCc2ccc(-c3ccc4nc(-c5ccc(Cl)cc5)cn4c3)cc21 to produce OC1CCCc2ccc(-c3ccc4nc(-c5ccc(Cl)cc5)cn4c3)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.