Using CCCC[C@H](N)C(=O)OCC, CC(C)(C)OC(=O)NCC(=O)N1CCC[C@H]1C(=O)O to produce CCCC[C@H](NC(=O)[C@@H]1CCCN1C(=O)CNC(=O)OC(C)(C)C)C(=O)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.