Using CC(C)(C)OC(=O)NC1CCC(=O)CC1, [PH3+]C(c1ccccc1)(c1ccccc1)c1ccccc1 to produce C=C1CCC(NC(=O)OC(C)(C)C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.