Using COC1=CC(=O)N(Cc2ncn(C(c3ccccc3)(c3ccccc3)c3ccccc3)c2C)CC1 to produce Cc1[nH]cnc1CN1CCC(=O)CC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.