WHEREIN R1 REPRESENTS AN ALKANOYL GROUP CONTAINING 3 OR 4 CARBON ATOMS, AND R2 REPRESENTS A HYDROGEN ATOM OR AN ALKANOYL GROUP CONTAINING 2, 3 OR 4 CARBON ATOMS.
摘要:
NEW 14A,17A-ALKYLIDENEDIOXY- AND 14A,17A-BENZYLIDENEDIOXY-19-NOR-PROGESTERONE COMPOUNDS ARE DISCLOSED. THE NEW COMPOUNDS POSSESS PROGESTATIONAL ACTIVITY
摘要:
21-SULFATE AND PHOSPHATE ESTERS OF CORTICOSTEROIDS ARE PREPARED BY REACTING THE RESPECTIVE 21-DIIODO COMPOUNDS WITH A SODIUM OR POTASSIUM SALT, A TERTIARY AMINE ADDITION SALT OF A MINERAL OXYACID FOLLOWED BY NEUTRALIZATION OF THE REMAINING ACID FUNCTIONS OF THE PRODUCT.
WHEREIN R1 AND R2 ARE E.G., H, ALKYL, CYCLOALKYL, ARYL OR HETEROARYL, POSSESS LONG ACTING PROGESTIONAL ACTIVITY AND ARE PRODUCED BY THE ACID CATALYZED CONDENSATION OF THE CORRESPONDING 16B-HYDROXY-17A-MERCAPTO STEROIDS WITH A KETONE OR ALDEHYDE UNDER EPIMERIZATION OF THE SUBSTITUENT ON CARBON ATOM C-16.
摘要:
Delta 4-3,11,20-Triketo steroids are iodinated in the presence of azobisisobutyronitrile to produce a mixture of unstable iodides, and the latter are treated with acylolysis reagents to produce a substantial fraction of Delta 1,4-3,11,20-triketo-21acyloxy products.
摘要:
This invention relates to the new 6 Alpha ,9 Alpha difluoroprednisolone 17-valerate and to pharmaceutical compositions for topical and systemic use of said compound in the treatment of inflammatory conditions.
摘要:
17 Alpha -Alkanoyloxy-11 Beta -methyl-19-norpregn-4-ene-3,20diones are converted to the corresponding enol ethers by standard methods and the latter derivatives are, alternatively, oxidized to yield the corresponding 4,6-diene-3,20-diones or are contacted first with an N-chloroamide or N-chloroimide, e.g., Nchlorosuccinimide, then with a strong mineral acid to yield the 6 Alpha -chloro compounds. Reaction of the aforementioned 4,6diene-3,20-diones with a peracid results in the corresponding 6 Alpha ,7 Alpha -epoxy-3-keto- Delta 4 compounds, which are contacted with a hydrogen halide, and the resulting 6 Beta chloro-7 Alpha -hydroxy compounds are dehydrated by conversion first to the 7-methanesulfonate followed by heating with a suitable base to provide the desired 6-chloro-3-keto- Delta 4,6 derivatives. The compounds of this invention are unusually potent progestational and estrogen-inhibitory agents.
WHEREIN R1 is a hydrogen or chlorine atom; R2 is a hydrogen atom, a fluorine atom, or a methyl group; R3 is a hydrogen atom or a methyl group; R4 is a hydrogen atom or a free or esterified hydroxy group; and C1-C2 represents a single or double bond joining the carbon atoms at the 1- and 2-positions, have antiinflammatory activity.
摘要:
5-Bromo-6-fluoro steroids are produced by the bromine-fluorine addition to the double bond of a Delta 5-unsaturated steroid using an N-bromoacylamide or N-bromoimide and aqueous hydrogen fluoride. A novel steroid produced by the process is 6 Beta fluoro-5 Alpha -bromo-3 Beta ,17 Beta -dihydroxy-androstane.
摘要:
WHEREIN R1 IS CH3 OR A HALOGEN ATOM R2 IS H OR CH3 R3 IS A FREE OR ESTERIFIED HYDROXYL GROUP R4 IS A FREE, ESTERIFIED OR ETHERIFIED HYDROXY GROUP AND X AND Y REPRESENT A HALOGEN ATOM. USE: AS ANTIPHLOGISTICS.