Abstract:
The invention relates to 3'', 4''-anhydro- Beta , Ltalomethylosides of the general formula I
wherein R1 is methyl or formyl and R2 stands for Beta -H or Beta -OH, if there is no double bond in 4,5-position, and R3 is a butenolide or cumalin ring, a process for preparing them and their use in the treatment of cardiac and circulatory disturbances. The compounds are especially suitable for treating cardiac insufficiency, tachycardia and conduction defects.
Abstract:
Delta 14-20-KETO-21-DIALKOXY STEROIDS ARE PREPARED BY OXIDIZING 20-KETO-15 Alpha ,21-DIHYDROXY STEROIDS OF THE GENERAL FORMULA
IN WHICH Y is an oxo group which may be ketalized, a
GROUP WHICH MAY BE ETHERIFIED OR ESTERIFIED, A Delta 3-, Delta 2-, OR Delta 3,5-ENOL ETHER GROUP OR A Delta 3-, Delta 2-, OR Delta 3,5-ENAMINO GROUP, WHICH GROUPS MAY HAVE A DOUBLE BOND IN THE 4-POSITION, AND
IS A LOWER ACYCLIC OR CYCLIC ACETAL GROUPING, ACETALIZING THE 15 Alpha -HYDROXY-20-KETO-21-OXO STEROIDS OBTAINED, REACTING THE 15 Alpha -HYDROXY-20-KETO-21-DIALKOXY STEROIDS THUS OBTAINED WITH SULFONIC ACID HALIDES AND TREATING THE 15-SULFONIC ACID ESTERS THUS OBTAINED WITH AGENTS SPLITTING OFF ACIDS. The products are valuable intermediates for the manufacture of medicaments.
Abstract:
Process for the manufacture of 4-chloro-3-oxo-14 Beta -hydroxyor 4-chloro-3,14 Beta -dihydroxy-carda-4,20(22)dienolides wherein 3-oxo-carda-4,14,20(22)-trienolides are at first treated with chlorine, the compounds obtained are converted by hydrogenolysis into 3-oxo-4-chloro-carda-4,14,20-trienolides, these are treated with N-bromo-acid amides, and the 3-oxo-4chloro-14 Beta -hydroxy-15 Alpha -bromo-carda-4,20(22)-dienolides thus obtained are treated with Raney nickel and may be reduced.
Abstract:
21-(CYCLOBUTYL-CARBOXYLIC ACID)-ESTERS OF 3-OXO$4-STEROIDS USEFUL AS ANTI-INFLAMMATORY AGENTS, AND THEIR MANUFACTURE BY REACTION OF CYCLOBUTANE CARBOXYLIC ACID CHLORIDE WITH CORRESPONDING 21-HYDROXY-STEROIDS.
Abstract:
Cardioactive 3 Beta -hydroxy-14,15 Beta -epoxy-5 Beta cardenolide-or -5 Beta -bufadienolide-glucosides and rhamnosides. A method for making these compounds by reacting the corresponding 14-anhydrocardenolides or 14-anhydrobufadienolides with an acylhalopyranose, reacting the resultant acylated pyranoside with a hypohalous acid to form the corresponding halohydrin, and epoxidizing the halohydrin with a base.
Abstract:
wherein R is hydrogen or alkanoyl or alkyl having 1 to 5 carbon atoms are described as well as two processes for their preparation. The compounds show positive inotropic action and are suitable for treating heart diseases.
Digitoxigenin-3- Alpha -(L-rhamnopyranoside-2'',3''cyclocarbonates) of the general formula I
Abstract:
DELTA 14-20-KETO-21-DIALKOXY STEROIDS ARE PREPARED BY OXIDIZING 20-KETO-15 alpha ,21-DIHYDROXY STEROIDS OF THE GENERAL FORMULA IN WHICH Y is an oxo group which may be ketalized, GROUP WHICH MAY BE ETHERIFIED OR ESTERIFIED, A DELTA 3-, DELTA 2-, OR DELTA 3,5-ENOL ETHER GROUP OR A DELTA 3-, DELTA 2-, OR DELTA 3,5-ENAMINO GROUP, WHICH GROUPS MAY HAVE A DOUBLE BOND IN THE 4-POSITION, AND IS A LOWER ACYCLIC OR CYCLIC ACETAL GROUPING, ACETALIZING THE 15 alpha -HYDROXY-20-KETO-21-OXO STEROIDS OBTAINED, REACTING THE 15 alpha -HYDROXY-20-KETO-21-DIALKOXY STEROIDS THUS OBTAINED WITH SULFONIC ACID HALIDES AND TREATING THE 15-SULFONIC ACID ESTERS THUS OBTAINED WITH AGENTS SPLITTING OFF ACIDS. The products are valuable intermediates for the manufacture of medicaments.