摘要:
Ein Verfahren zur Herstellung von 6α,9α-Difluor-11β,17α-dihydroxy-16α-methyl-4-pregnen-3,20-dion und dessen Derivaten der allgemeinen Formel I worin ..... eine Einfachbindung oder eine Doppelbindung symbolisiert und X ein Wasserstoffatom, ein Bromatom, ein Jodatom oder eine Alkanoyloxygruppe mit maximal 8 Kohlenstoffatomen darstellt, aus 3β,17α-Dihydroxy-16α-methyl-5-pregnen-20-on wird beansprucht.
摘要:
This invention provides novel tetrahydro steroids which are useful in inhibiting angiogenesis and have the following structure: A compound of the formula: wherein R₁ is β-CH₃ or β-CH₂H₅; wherein R₂ is H, and R₃ is =0, -OH, -0-alkyl(C₁-C₁₂), -OC(=0)-alkyl(C₁-C₁₂), -OC(=0)aryl, -OC(=0)N(R)₂, or -OC(=0)OR₇, wherein aryl is furyl, thienyl, pyrrolyl, or pyridyl wherein each of said hetero moiety is optionally substituted with one or two (C₁-C₄)alkyl groups or aryl is -(CH₂) f -phenyl wherein f is 0 to 2 and wherein the phenyl ring is optionally substituted with 1 to 3 groups selected from chlorine, fluorine, bromine, alkyl(C₁-C₃), alkoxy(C₁-C₃), thioalkoxy-(C₁-C₃), Cl₃C-, F₃C-, -NH₂ and -NHCOCH₃ and wherein R is hydrogen, alkyl(C₁-C₄), or phenyl and each R can be the same or different; and wherein R₇ is aryl as herein defined or alkyl(C₁-C₁₂); or wherein R₂ is α-Cl and R₃ is β-Cl, or wherein R₂ and R₃ taken together are oxygen (-0-) bridging positions C-9 and C-11; or wherein R₂ and R₃ taken together form a double bond between positions C-9 and C-11; or R₂ is α-F and R₃ is β-OH; wherein R₄ is H, CH₃, Cl or F; wherein R₅ is H, OH, F, Cl, Br, CH₃, phenyl, vinyl or allyl; wherein R₆ is H or CH₃; wherein R₉ is H, OH, CH₃, F or =CH₂; wherein R₁₀ is H, OH, CH₃ or R₁₀ forms a second bond between positions C-16 and C-17; wherein R₁₂ is -H or forms a double bond with R₁₄; wherein R₁₃ is H, -OH, -OH, =0, -0-P(0)(OH)₂, or -0-C(=0)-(CH 2)t COOH where t is an integer from 2 to 6; wherein R₁₄ is H or forms a double bond with R₁₂; wherein R₁₅ is =0 or -OH; wherein R₂₃ with R₁₀ forms a cyclic phosphate of the formula wherein R₉ and R₁₅ have the meaning defined above; or wherein R₂₃ is -OH, O-C(=0)-R₁₁, -0-P(0)(OH)₂, or -0-C(=0)-(CH₂) t COOH wherein t is an integer from 2 to 6; and R₁₁ is -Y-(CH₂) n -X-(CH₂) m -SO₃H, -Y'-(CH₂) p -X'-(CH₂) q -NR₁₆R₁₇ or -Z(CH₂) r Q, wherein Y is a bond or -0-; Y; is a bond, -0-, or -S-; each of X and X' is a bond, -CON(R₁₈)-, -N(R₁₈)CO-, -0-, -S-, -S(0)-, or -S(0₂)-; R₁₈ is hydrogen or alkyl(C₁-C₄); each of R₁₆ and R₁₇ is a lower alkyl group of from 1 to 4 carbon atoms optionally substituted with one hydroxyl or R₁₆ and R₁₇ taken together with the nitrogen atom to which each is attached forms a monocyclic heterocyclic selected from pyrrolidino, piperidino, morpholino, thiomorpholino, piperazino or N(lower)alkylpiperazino wherein alkyl has from 1 to 4 carbon atoms; n is an integer of from 4 to 9; m is an integer of from 1 to 5; p is an integer of from 2 to 9; q is an integer of from 1 to 5; Z is a bond or -0-; r is an integer of from 2 to 9; and Q is
(1) -R₁₉-CH₂COOH wherein R₁₉ is -S-, -S(0)-, -S(0)₂-, -SO₂N(R₂₀)-, or -N(R₂₀)SO₂-; and R₂₀ is hydrogen or lower alkyl(C₁-C₄); with the proviso that the total number of carbon atoms in R₂₀ and (CH₂) r is not greater than 10; (2) -CO-COOH; or (3) -CON(R₂₁)CH(R₂₂)COOH wherein R₂₁ is H and R₂₂ is H, CH₃, -CH₂COOH, -CH₂CH₂COOH, -CH₂OH, -CH₂SH, -CH₂CH₂SCH₃, or -CH₂Ph-OH wherein Ph-OH is p-hydroxyphenyl; or R₂₁ is CH₃ and R₂₂ is H; or R₂₁ and R₂₂ taken together are -CH₂CH₂CH₂-; or -N(R₂₁)CH(R₂₂)COOH taken together is -NHCH₂CONHCH₂COOH; and pharmaceutically acceptable salts thereof; with the further provisos that:
(a) when n is 2, R₁₈ is other than hydrogen; (b) the sum of m and n is not greater than 10; (c) the sum of p and q is not greater than 10; (d) when X is a bond the sum of m and n is from 5 to 10; (e) when X' is a bond the sum of p and q is from 4 to 9; (f) when R₄ is Cl or F, the C-1 position is saturated; and (g) when R₉ is =CH₂, R₁₀ is other than a second bond between positions C-16 and C-17; and mono and bis salts thereof; excepting the following compound: 3α,11β,17α,21-tetrahydroxy-5β-pregnane-20-one, and with the proviso that except for the compound 21-phosphate-6α-fluoro-17-hydroxy-16β-methyl(pregna-4,9(11))-diene)-3,20-dione, R₁₃ is =0 only when R₂₃ with R₁₀ forms the above described cyclic phosphate.
摘要:
A 16a-methyl-, 16β-methyl- or 16-methylene-17-keto steroid is transformed to the corresponding 17α-ethynyl-17β--hydroxy steroid without epimerisation and loss of stereochemistry of the 1 6a-methyl or 16β-methyl group or destruction of the 16-methylene substituent, using a novel stabilised lithium acetylide.
摘要:
A process for the preparation of corticosteroid esters of the formula wherein --- signifies that a double bond can be present; X is hydrogen, fluorine or chlorine; R 1 is hydrogen, fluorine, chlorine or methyl, which may be either a or β; R 2 is halogen, oxo, i.e. ketonic oxygen, or hydroxyl; R 3 is hydrogen, a-methyl or β-methyl; R 4 is an acyl group of the formula RCO, in which R is one of the following: i) an alkyl group containing 1 to 16 carbon atoms, whether straight-chained, branched or cyclic; ii) an aralkyl group of 7 to 8 carbon atoms; or iii) a phenyl group; R 5 is hydroxyl or R 6 ; where R 6 is hydrogen, halogen, two halogen atom substituents or OR 7 , where R 7 is an acyl group of the formula R'CO in which R', which can be identical or different to R in the same molecule, is one of the following: i) an alkyl group containing 1 to 16 carbon atoms, whether straight-chained, branched or cyclic; ii) an aralkyl group of 7 to 8 carbon atoms; or iii) a phenyl group; which comprises esterifying a compound of the formula wherein X, R 1 , R 3 and R 5 are as defined above, and R 8 is trihaloacetate, halogen or oxo; at the 17-position only, or at the 17-and 21-positions when R 5 , in formula III, is hydroxyl, the said esterification being carried out with the anhydride of the acid containing the group it is desired to enter at the 17- position, or at the 17- and 21- positions, together with a pair of strong acids; and if desired eliminating immediately thereafter any 11-trihaloacetate substituent, to form a compound of formula I, wherein R 2 is hydroxyl, Rs is R 6 , and X, R 1 , R 3 and R 4 are as defined above; or when R 8 is halogen or oxo and R 5 is R 6 , isolating a compound of formula I after the said esterification; or treating a compound of formula IV from the esterification wherein R 5 is R 6 , by eliminating the 11-trihaloacetate group therefrom by reaction, in the presence of a lower alcohol, with an organic amine (other than one in which the nitrogen forms part of an aromatic ring), or ammonia gas dissolved in a suitable anhydrous solvent, or ammonium hydroxide or hydrazine, to produce a compound of formula I wherein R 2 is hydroxyl, R 5 is R 6 and X, R 1 , R 3 and R 4 are as defined from formula I; or by so eliminating the 11-trihaloacetate group from a compound of formula wherein X, R 1 and R 3 are as defined forformula I; R 9 is an alkyl group of 1 to 3 carbon atoms; and R 10 is a hydrocarbon group comprising one of the following: i) an alkyl group of 1 to 16 carbon atoms, whether straight-chained, branched or cyclic; ii) an aralkyl group of7 to 8 carbon atoms; or iii) a phenyl group; to form a compound of formula 1, wherein R 2 and R 5 are both hydroxyls, and R 1 , R 3 , R 4 and X are as defined for formula I.
摘要:
The present invention relates to a method of using a perchloric acid catalyzed reaction to make acyl derivatives of norprogesterone compounds and, in particular, 16-methylene-17 alpha -hydroxy-19-norpregn-4-ene-3,20-dione.
摘要:
Procédé de préparation de nouveaux intermédiaires de corticostéroïdes de la formule (XXX). Le procédé consiste à mettre en contact un 9alpha-hydroxystéroïde de la formule (XX) avec (A) dans l'étape (a) un anhydride, un acide organique et un réactif acide ayant un pKa d'environ 3 au moins, suivie par l'étape (b) de traitement à l'aide d'eau, d'alcali aqueux ou d'acide aqueux; ou selon un autre mode de réalisation, avec (B) soit un anhydride et un accepteur de protons, soit un halogénure d'acyle et un accepteur de protons, afin d'obtenir le stéroïde de la formule (XX). L'emploi de l'étape (a) dans le procédé (A) permet également d'obtenir de nouveaux intermédiaires de stéroïdes de la formule (XXV).