Prostaglandins: PG-endoperoxide analogs: The preparation and transformation of 2-oxazabicyclo (2.2.1) heptene hydrochloride, Prostanoid sysnthesis from nitroethylene-cyclopentadiene adduct via 2-Oxabicyclo (3-3-0) Oct-3 One-7-Ene and Nitroetyl
