Using CNCc1ccncc1, CC(=O)N[C@@H](C)c1ccc(C2CCN(c3ncc(C(=O)O)cn3)CC2)cc1 to produce CC(=O)N[C@@H](C)c1ccc(C2CCN(c3ncc(C(=O)N(C)Cc4ccncc4)cn3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.