pge1 , pge2 , pgf2 alpha and pgi2 , methylated prostaglandins ( 15-met-pge1 , 15-met-pge2 and 15-met-pgf2 alpha ) , pgf2 alpha-13-dehydro analogues ( 13-dh-pgf2 alpha , ent-15-epi-13-dh-pgf2 alpha ) , endoperoxide analogues ( 15s ) -hydroxy-9 alpha,11 alpha- ( epoxymethano ) -prosta-5z,13e-dienoic acid ( u 44069 ) and ( 15s ) -hydroxy-11 alpha,9 alpha- ( epoxymethano ) -prosta-5z , 13e-dienoic acid ( u 46619 ) , and of the prostaglandin precursor , arachidonic acid , has been demonstrated after intraluminal instillation of these compounds into the uterus of immature rats sensitized with progesterone alone .
C0012472
pge2
C0033554
prostaglandin