Using COC(=O)c1nc(N2CCN(C(=O)OC(C)(C)C)CC2)cn2nc(-c3ccco3)nc12 to produce CC(C)(C)OC(=O)N1CCN(c2cn3nc(-c4ccco4)nc3c(C(=O)O)n2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.