CAS: 734-32-7; Norandrostenedione

上下游产品

pyridine 4β-bromo-5β-estrane-3,17-dione 19-nortestosterone (10)-diene17,17-ethanediyldioxy-3-methoxy-estra-2,5(10)-diene19-nor-5β-androstane-3,17-dione norethandrolone norethisterone 19-nortestosterone

诺龙置于氧气,Sodium Acetate体系中,用 水,碳酸二乙酯 作为反应溶剂,100.0 °C,5.0 Mpa 条件下,反应 4.0H,反应生成 19-去甲-4-雄烯二酮
参考文献:钯纳米粒子在水性介质中作为绿色和可持续氧化功能化醇的催化剂
标题:钯纳米粒子在水性介质中作为绿色和可持续氧化功能化醇的催化剂
摘要:先前描述的用于酒精的好氧氧化的催化剂体系包括乙酸钯(II)与新环丙氨酸在水和与水混溶的助溶剂(如碳酸亚乙酯或二甲基亚砜)1:1混合物中的组合,其中涉及到钯纳米颗粒活性催化剂.后者是在原位形成的,或者可以通过用氢气还原钯-新古铜络合物来制备,并且它们都可以被新铜环素配体和助溶剂稳定.该催化剂体系已成功用于甾族仲醇,Nandrolone和5α-Pregnan-3α-Ol-20-One的有氧选择性氧化为相应的酮.
DOI:10.1016/j.Tet.2009.11.007

专利信息

专利号:EP-2070941-A1
优先权日:2007-12-14
标 题 :Stereoselective synthesis of selective estrogen receptor down-regulators
权利人:BAYER SCHERING PHARMA AG; ASTRAZENECA AB
摘要:The present invention relates to stereoselective synthesis of 7-α-substituted estra-4-ene-3,17-diones. Such compounds are valuable intermediates in the synthesis of 7-α-substituted estra-1,3,5(10)-triene-3,17-diols. n Key step in this synthesis is reacting a 3-keto-4,6-estradiene with a Grignard reagent selected from the group consisting of a magnesium-halide alkyl halide having at least 3 carbon atoms, a magnesium-halide alkenyl halide having at least 3 carbon atoms, and a magnesium-halide alkynyl halide having at least 3 carbon atoms, in the presence of a catalyst system comprising CuI. n The obtained 7α-alkyl, alkenyl and alkynyl halides can be used for the synthesis of pharmaceutically actice 7-α-substituted estra-1,3,5(10)-triene-3,17-diols (antiestrogens).

专利号:US-8183402-B2
优先权日:2007-06-27
标 题:Industrial method for the synthesis of 17-acetoxy-11β[4-(dimethylamino)-phenyl]-21-methoxy-19-norpregna-4,9-dien-3,20-dione and the key intermediates of the process
发明人：BODI JOZSEF; VISKY GYOERGY; SZELES JANOS; MAHO SANDOR; SANTA CSABA; CSOERGEI JANOS; TUBA ZOLTAN; TERDY LASZLO; MOLNAR CSABA; ARANYI ANTAL; HORVATH ZOLTAN; BALOGH GABOR
权利人:BODI JOZSEF; VISKY GYOERGY; SZELES JANOS; MAHO SANDOR; SANTA CSABA; CSOERGEI JANOS; TUBA ZOLTAN; TERDY LASZLO; MOLNAR CSABA; ARANYI ANTAL; HORVATH ZOLTAN; BALOGH GABOR; RICHTER GEDEON NYRT
摘要:The present invention relates to a process for the synthesis of the 17-acetoxy-11β-[4-(dimethylamino)-phenyl]-21-methoxy-19-norpregna-4,9-dien-3,20-dione of formula (I): n nfrom 3,3-[1,2-etandiyl-bis(oxy)]-oestr-5(10),9(11)-dien-17-one of formula (II):

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.

专利号:US-3965138-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 was heretofore found necessary in previous steroid total synthesis processes.

专利号:US-3991084-A
优先权日:1970-08-26
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.