| abstract |
R' zusammen mit dem Sauerstoffatom, an das es gebunden ist, eine hydrolysierbare Estergruppe, R zusammen mit dem Sauerstoffatom, an das es gebunden ist, eine hydrolysierbare Aethergruppe darstellt und t trans-Konfiguration bezeichnet, New prostaglandin intermediates of the formula where Z> C = 0 or R 'together with the oxygen atom to which it is attached represents a hydrolyzable ester group, R together with the oxygen atom to which it is attached represents a hydrolyzable ether group and denotes the t trans configuration, n n n Diastereomers thereof, in which the ring-substituents have the opposite stereoconfiguration to that given above, and mixtures thereof, are obtained from new zirconium compounds and cyclopentenyl derivatives. The compounds of the formal are intermediates for anti-secretory prostaglandins. |