9-Oxo-15-substituted prostanoic acids, and intermediates for their preparation and for the preparation of other known prostaglandins are disclosed. The final products have bronchodilatory activity.
CROSS-REFERENCE TO COPENDING APPLICATION
This application is a division of application Ser. No. 569,026, filed Apr. 17, 1975, which in turn is a division of application Ser. No. 462,006, filed Apr. 18, 1974, which is a continuation-in-part of application Ser. No. 383,007 filed July 26, 1973, now U.S. Pat. No. 3,922,802.
