Using O=C(O)C1CC1, CC1(N2CCC(N3C(=O)N[C@@H]4CCCC[C@H]43)CC2)CCNCC1 to produce CC1(N2CCC(N3C(=O)N[C@@H]4CCCC[C@H]43)CC2)CCN(C(=O)C2CC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.