CAS: 481-26-5; 5β,14α-Pregnane

上下游产品

5β-Pregnan-7-One 30648-44-3
20-Oxo-5β-Pregnane 4729-67-3
5Beta-孕甾烷-3,20-二酮 Pregnanedione 128-23-4
12-Oxopregnane 17996-90-6
5β-Pregn-11-Ene 6673-73-0

📜5Beta-孕甾烷-3,20-二酮置于盐酸,Amalgamated Zinc体系中,化学反应生成 17-Beta-乙基本胆烷
参考文献:Polymer Nanocomposites: Status And Opportunities
标题:Polymer Nanocomposites: Status And Opportunities
摘要:将聚合物与第二相(不论是无机的还是有机的)强化,以生产聚合物复合材料,在现代塑料生产中很常见.聚合物纳米复合材料(pncs)代表了这些传统聚合物复合材料的一种激进替代方案.
DOI:10.1557/mrs2001.93

专利信息

专利号:US-8110691-B2
优先权日:2006-06-14
标题 :Industrial process for the synthesis of 17α-acetoxy-11β-[4-(N,N-dimethyl-amino)-phenyl]-19-norpregna-4,9-diene-3,20-dione and new intermediates of the process
发明人：DANCSI LAJOSNE; VISKY GYOERGY; TUBA ZOLTAN; CSOERGEI JANOS; MOLNAR CSABA; MAGYARI ENDRENE
权利人:DANCSI LAJOSNE; VISKY GYOERGY; TUBA ZOLTAN; CSOERGEI JANOS; MOLNAR CSABA; MAGYARI ENDRENE; RICHTER GEDEON NYRT
摘要:A new industrial process for the synthesis of solvate-free 17α-acetoxy-11β-[4-(N,N-dimethyl-amino)-phenyl]-19-norpregna-4,9-diene-3,20-dione [CDB-2914] of formula (I) which is a strong antiprogestogene and antiglucocorticoid agent. The invention also relates to compounds of formula (VII) and (VIII) used as intermediates in the process.

专利号:US-4913852-A
优先权日:1986-06-24
标题 :Compounds obtained from the associative synthesis of sulfur-containing or sulfur-free amino acids with pregnane derivatives
发明人：MILIONI CATHERINE; EFTHYIMIOPOULOS CONSTANTIN; KOCH BERNARD; JUNG LOUIS; JUNG JEAN
权利人:MILIONI CATHERINE; EFTHYIMIOPOULOS CONSTANTIN; KOCH BERNARD; JUNG LOUIS; JUNG JEAN
摘要:Compounds obtained from the associative synthesis of sulfur-containing or sulfur-free amino acids with derivatives of Δ-4-pregnene-3,20-dione or with derivatives of Δ-1,4-pregnadiene-3,20-dione of the general formulas (I), (II) and (III), having glucocorticoidal and anti-inflammatory properties have been prepared and tested. Pharmaceutical compositions, medicaments containing them as well as their applications are claimed, particularly in the cutaneous and ophthalmic fields. ##STR1##

专利号:US-8367394-B2
优先权日:2007-07-04
标题:Process for the synthesis of 9α-hydroxy-steroids
发明人：OLASZ KATALIN; TEGDES ANIKO; GANCSOS VALERIA; HANTOS GABOR; KOENCZOEL KALMAN; BALOGH GABOR; ERDELYI SANDOR
权利人:RICHTER GEDEON NYRT; OLASZ KATALIN; TEGDES ANIKO; GANCSOS VALERIA; HANTOS GABOR; KOENCZOEL KALMAN; BALOGH GABOR; ERDELYI SANDOR
摘要:The present invention relates to a novel selective synthesis of 9α-hydroxy-steroid derivatives of the general formula (I) (I)—wherein the meaning of -A-A′- is —CH 2 —CH 2 — or —CHâ•?CH— group—by the bioconversion of compounds of the general formula (II) (II) wherein the meaning of -A-A′- is —CH 2 —CH 2 — or —CHâ•?CH— group—by using Nocardia farcinica bacterium strain, deposition number of which is NCAIM (P)—B 001342, as hydroxylating microorganism in the bioconversion.

专利号:US-3682895-A
优先权日:1970-07-17
标题 :Synthesis of 3-hydroxy-5-bufa-20,22-dienolide
发明人：PETTIT GEORGE R; FESSIER DYRAL C; PAUIL KENNETH D
权利人:GEORGE R PETTIT; DYRAL C FESSIER; KENNETH D PAUIL
摘要:THERE IS PROVIDED A NOVEL METHOD OF SYNTHEESIZING 5ABUFADIENOLIDES, WHICH ARE USEFUL INTERMEDIATES IN THE TOTAL SYNTHESIS OF BUFALIN, A CARDIAC ACTIVE COMPOUND. EPIANDROSTERONE ACETATE IS CONVERTED INTO 3B - ACETOXYL-5APREGNANE-21-AL WHICH UNDERGOES CHAIN EXTENSION TO METHYL 3B-ACETOXYL-20-FORMYL-21-NOR-5A-CHOLANATE WHICH IS RING CLOSED TO FORM THE 3B - ACETOXY-5-A-BUF-20(21)-ENOLIDE WHICH IS DEHYDROGENATED TO THE CORRESPONDING BUFADIENOLIDE.

专利号:US-4045452-A
优先权日:1974-03-13
标题 :Steroid total synthesis process utilizing a cyanoalkyl A-ring precursor
发明人：COHEN NOAL; ROSENBERGER MICHAEL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:A multi-step, stereospecific total synthesis of steroids utilizing intermediates having a cyanoalkyl A-ring precursor is disclosed. The initial starting materials for this process are the relatively inexpensive and commercially available reagents γ-butyrolactone and sodium cyanide. The process is suitable for the preparation of racemic or optically active, medicinally valuable steroids, particularly 19-norsteroids. It is a feature of this process that conditions employed during the multiple step synthesis are selected so as to retain the normally labile nitrile group even during hydrogenation and hydrolysis steps. In this manner, it is possible to employ the nitrile group as an A-ring precursor without resorting to protective groups as wasl heretofore found necessary in previous steroid total synthesis processes.

专利号:US-4105676-A
优先权日:1975-12-22
标题 :Steroid total synthesis process utilizing a cyanoalkyl a-ring precursor
发明人：COHEN NOAL; ROSENBERGER MICHAEL; SAUCY GABRIEL
权利人:HOFFMANN LA ROCHE
摘要:A multi-step, stereospecific total synthesis of steroids utilizing intermediates having a cyanoalkyl A-ring precursor is disclosed. The initial starting materials for this process are the relatively inexpensive and commercially available reagents γ-butyrolactone and sodium cyanide. The process is suitable for the preparation of racemic or optically active, medicinally valuable steroids, particularly 19-norsteroids. It is a feature of this process that conditions employed during the multiple step synthesis are selected so as to retain the normally labile nitrile group even during hydrogenation and hydrolysis steps. In this manner, it is possible to employ the nitrile group as an A-ring precursor without resorting to protective groups as was heretofore found necessary in previous steroid total synthesis processes.