Using COC(=O)Cn1cc(-c2cccc3nc(Nc4ccc(OCCN5CCCC5)cc4)nn23)cn1 to produce O=C(O)Cn1cc(-c2cccc3nc(Nc4ccc(OCCN5CCCC5)cc4)nn23)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.