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A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
A61K31/00—Medicinal preparations containing organic active ingredients
A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
A61K31/57—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone
A61K31/573—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone substituted in position 21, e.g. cortisone, dexamethasone, prednisone or aldosterone
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07J—STEROIDS
C07J5/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond
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DK521663A1963-07-271963-11-07
Process for the preparation of 6α, 9α-difluoro-16α-methyl-Δ <1,4> -pregnadiene-11β, 21-diol-3,20-dione or esters thereof.
DK111615B
(en)
Analogous process for the preparation of 17-esters of Δ <1,4> -6α-fluoro- or 6α, 9α-di-fluoro-11β, 17α-dihydroxy-16α-methyl-3,20,21-trioxo-pregnadienes or 21- aldehyde hydrates, esters or acetals thereof.
Process for the preparation of 2'-acetamido-2'-deoxyglucosides or galactosides of 17α, 21-dihydroxy-11-oxygenated -3,20-diketo-steroids of the pregnane series.
Analogous process for the preparation of 2,9α, -11β-trichloro-6α-fluoro-16α-methyl-Δ <1,4> -pregnadiene-17α, 21-diol-3,20-dione or esters thereof.
Process for the preparation of 16-fluoromethylene-17α-hydroxy-20-keto-steroids of the pregnane, 19-nor-pregnane or iso-pregnane series or 17α-esters thereof.
Process for the preparation of 21-pyridinecarboxylic acid or pyridylacetic acid or pyridylglyoxalic acid esters of 17,21-dihydroxy-4-pregnene-3,20-diones.