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| Patents for C07C 405 - Compounds containing a five-membered ring having two side-chains in ortho position to each other, and having oxygen atoms directly attached to the ring in ortho position to one of the side-chains, one side-chain containing, not directly attached to the ring, a carbon atom having three bonds to hetero atoms with at the most one bond to halogen, and the other side-chain having oxygen atoms attached in gamma-position to the ring, e.g. prostaglandins (3,702) |
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| 01/06/1976 | US3931206 Luteolytic | | 01/06/1976 | US3930952 Microbiological reduction of PGA2 and 15-epi PGA2 |
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