A Semiempirical Transition State Structure for the First Step in the Alkaline Hydrolysis of Cocaine. Comparison between the Transition State Structure, the Phosphonate Monoester Transition State Analog, and a Newly Designed Thiophosphonate Transition State Analog Edward C. ShererGordon M. TurnerGeorge C. Shields ORIGINAL PAPER 19 April 1996 Pages: 62 - 69