| Patents for C07C 401 - Irradiation products of cholesterol or its derivatives; Vitamin d derivatives, 9,10-seco cyclopenta[a]phenanthrene or analogues obtained by chemical preparation without irradiation (3,426) | 
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| 08/10/1976 | US3974146 Cyanolpoxy intermediates for prostaglandins and process for preparing same | 
| 07/27/1976 | US3971825 (5,6) (10,11) bis-methylene, bronchodilators | 
| 07/20/1976 | US3970692 Process for the preparation of prostaglandin F2.sub.α and the analogs thereof | 
| 07/20/1976 | US3970685 (DL)-13-Substituted sulfinyl-prostaglandin-like compounds | 
| 06/29/1976 | US3966962 Triacetin solutions of PGE-type compounds | 
| 06/29/1976 | US3966792 Prostaglandin compounds | 
| 06/22/1976 | US3965143 Prostaglandin | 
| 06/08/1976 | US3962218 Novel prostanoic acid derivatives and processes for the preparation thereof | 
| 05/04/1976 | US3954881 Prostaglandins for inducing luteolysis | 
| 05/04/1976 | US3954844 (5Z,13E,15S)-15-Hydroxy-11-oxoprosta-5,9.13-trien-1-oic acid and esters | 
| 04/27/1976 | US3953502 Cyclopentane derivatives | 
| 04/27/1976 | US3953495 16-Methylene PGE2 | 
| 04/27/1976 | US3953435 Aldehyde derivatives of prostaglandins | 
| 04/20/1976 | US3952033 Furan intermediates and process for synthesis of 4-hydroxycyclopetenones, prostaglandin synthesis intermediates | 
| 04/13/1976 | US3950363 Antiinflammatory agents | 
| 01/27/1976 | US3935254 5c-prosten-13-ynoic acids | 
| 01/27/1976 | US3935240 Cyclopentylheptenoic acids and derivatives | 
| 01/27/1976 | US3935205 Dimorpholinomethyl-(4-methyl-3-pentenyl)-cyclohexenenes | 
| 01/20/1976 | US3933901 1,2-di(hydroxy or alkanoyloxy)-3-methyl-4-alkoxy-4-cyclohexene | 
| 01/13/1976 | US3932496 Mono- and dialkylated prostynoic acid derivatives | 
| 01/13/1976 | US3932487 Hypotensive | 
| 01/13/1976 | US3932463 11-Deoxy-13-dihydro-prostaglandin-9-ketals | 
| 01/13/1976 | US3932389 Antiulcer agents | 
| 01/06/1976 | US3931323 Process for the preparation of alkenoyl-substituted cyclohexenes | 
| 01/06/1976 | US3931279 5-Oxa prostaglandin F2.sub.α analogs | 
| 01/06/1976 | US3931257 Polyene compounds |