Using CCOCc1nc2c(N)nc3cc(-c4ccccc4)ccc3c2n1CC1CCN(C(=O)OC(C)(C)C)CC1 to produce CCOCc1nc2c(N)nc3cc(-c4ccccc4)ccc3c2n1CC1CCNCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.