Using CCOC(C)=O, CCOC(=O)c1cnn(-c2ccc(C(=O)NCC3CCOCC3)cn2)c1O to produce CCOC(=O)c1cnn(-c2ccc(C(=O)NCC3CCOCC3)cn2)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.