Using C=CCOC(=O)C1=C(C(=O)OCc2ccccc2)CN2CC(NC(=O)OC(C)(C)C)C(=O)N12 to produce C=CCOC(=O)C1=C(C(=O)OCc2ccccc2)CN2CC(N)C(=O)N12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.