Using O=C(NCC1CC1)Nc1ccc(C(=O)O)cc1, CNC1CCN(C(=O)OC(C)(C)C)C1 to produce CN(C(=O)c1ccc(NC(=O)NCC2CC2)cc1)C1CCN(C(=O)OC(C)(C)C)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.