9-Benzoyl-1,2,3,4-tetrahydrocarbazole

9-Bromo-or chloro-9,10-dihydro-10-dihydro-10-alkoxy-4H-benzo[4,5

9-Carbamoyl-9-(2-cyanoethyl)fluorenes

9-Deoxy-6,9-epoxymethano-prostaglandin derivatives

9-Deoxy-6,9.alpha.-epoxymethano-5,6-didehydro-PGF.sub.1, amide

9-Deoxy-9,10-didehydro-PGD.sub.1 compounds

9-Deoxy-9,10-epoxide-daunomycinone

9-Deoxy-9-methylene-PGF compounds

9-Deoxy-9-methylene-PGF sulfonylamides

9-Deoxy-9-methylene-PGF-type amides

9-Deoxy-9-methylene-PGF-type lactones

9-Deoxy-9-methylene-PGF.sub.1 -hexamethyliminoamides

9-Deoxy-9.alpha.,6-nitrilo or 6,9.alpha.-imino-17,18-didehydro-P

9-Deoxy-9.alpha.,6-nitrilo or 6,9.alpha.-imino-PGF compounds

9-Deoxy-9.alpha.-hydroxymethyl-PGF.sub.2 analogs

9-Deoxy-PGD-type, 1,15-lactones

9-Deoxy-PGD.sub.1 compounds

9-Deoxy-PGD.sub.2 compounds

9-Deoxy-PGF.sub.2 Analogs

9-Dihydroniddamycin A compounds and related 3-(O)-esters and the