Using CC(C)(C)OC(=O)NC1CCCN(C(=O)OCc2ccccc2)C1, CN(C)C=O to produce CN(C(=O)OC(C)(C)C)C1CCCNC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.