Abstract
Much work in the purification, extraction and theraputic standardization of cardiac glycosides has been brought together by Pieser and Strain. This has lead to the proof of the structure and essential functional groups of these substances. | Simpler substances having the same functional important groups of the naturally occuring cardiac glycosides have been the object of much investigation in recent years. Papadakis has prepared 1-(p-acetoxyphenyl )-2,6-dicarbethox.y-cyclohexane- dione-3,5 as an intermediate product for the preparation of a substitute for digitalis glycosides. Prom the method he used, it was evident that the compound should have Structure I as given below.