The following structure is an intermediate in a synthesis of prostaglandins F2a and E2 by E. J. Corey (Harvard University). A Horner-Wadsworth-Emmons reaction was used to form the (E)-alkene. Write structures for the phosphonate ester and carbonyl reactant that were used in this process. (Note: The carbonyl component of the reaction included the cyclopentyl group.)

Transcribed Image Text:

AcƠ Ac CH3C