Using O=C(NCC1CC1)Nc1ccc(C(=O)O)cc1, CC(C)(C)OC(=O)N1CCNCC1 to produce CC(C)(C)OC(=O)N1CCN(C(=O)c2ccc(NC(=O)NCC3CC3)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.