Antibody-Catalyzed Enantioselective Robinson Annulation

The Skaggs Institute for Chemical Biologyand the Department of Molecular BiologyThe Scripps Research Institute10550 North Torrey Pines Road, La Jolla, California 92037Laboratory for Bioorganic ChemistryThe Sloan-Kettering Institute for Cancer Research1275 York AVenue, New York, New York 10021ReceiVed March 25, 1997We report an antibody that is remarkable in that it catalyzesboth steps of an important synthetic transformation, the Rob-inson annulation. The Robinson annulation which accomplishes,in net terms, the conversion of a f c occupies a key role inorganic synthesis.