Using CC(C)(C)OC(=O)NCCCC(=O)O, NCc1cccc2c1CN(C1CCC(=O)NC1=O)C2=O to produce CC(C)(C)OC(=O)NCCCC(=O)NCc1cccc2c1CN(C1CCC(=O)NC1=O)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.