LTF4 13,14-dihydro-15-keto-PGF2alpha 11-dehydro TXB2 TXB2 PGE2 Products PGF2alpha COX 8-iso PGF2alpha 15(S)-HETE 12(S)-HETE LTB4 LTC4 LTD4 LTE4 PGI2 6-keto PGF1alpha PGD2 9 alpha, 11 beta PGF2alpha 2,3-dinor-6-keto-PGF1alpha 13, 14 dihydro-15-keto-PGE2 15-deoxy-delta12,14-PGJ2