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pregna-1,4,16-triene-3,20-dione | 75863-26-2

中文名称
——
中文别名
——
英文名称
pregna-1,4,16-triene-3,20-dione
英文别名
1,4,16-trienepregna-3,20-dione;Pregna-1,4,16-trien-3,20-dion;(8S,9S,10R,13S,14S)-17-acetyl-10,13-dimethyl-6,7,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthren-3-one
pregna-1,4,16-triene-3,20-dione化学式
CAS
75863-26-2
化学式
C21H26O2
mdl
——
分子量
310.436
InChiKey
CYHIWWJMJIAQOW-RKFFNLMFSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    4.1
  • 重原子数:
    23
  • 可旋转键数:
    1
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.62
  • 拓扑面积:
    34.1
  • 氢给体数:
    0
  • 氢受体数:
    2

SDS

SDS:d09270e5d3604c272928d38b9ff259b1
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反应信息

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文献信息

  • 关于一种孕甾-16-烯-3,20-二酮甾体衍生物 的制备方法
    申请人:天津金耀集团有限公司
    公开号:CN104710496B
    公开(公告)日:2017-11-07
    本发明涉及一种孕甾‑16‑烯‑3,20‑二酮甾体衍生物(II)的制备方法,其特征是将17制备乙炔基‑17备方羟基甾体衍生物I与试剂A或含有试剂A的有机溶剂反应得到,反应温度:25℃~溶剂回流温度,所述试剂A为5%~15%的五氧化二磷溶于甲磺酸形成的溶液。
  • Synthesis of 20-oxo steroids
    作者:Daan van Leusen、Erik van Echten、Albert M. van Leusen
    DOI:10.1002/recl.19921111102
    日期:——
    The synthesis is described of a series of eighteen 16-dehydro-20-isocyano-20-sulfonylpregnanes (5 and 8–14) by C-20 alkylation of 17-[isocyano(sulfonyl)methylene]androstanes 1–3. The geminal isocyano and sulfonyl groups at C-20 (compounds 5, 8–14) are removed by acid hydrolysis to provide a new entry into 20-oxo steroids (6, 15–19). The C-20 alkylation also includes halomethylation and alkoxymethylation
    通过17- [异氰基(磺酰基)亚甲基] Androstanes 1-3的C-20烷基化反应,描述了18个16-脱氢-20-异氰基20-磺酰基孕烯的合成(5和8-14)。通过酸水解将C-20上的双异氰酸酯基和磺酰基基团(化合物5、8–14)除去,以提供新的进入20-氧代类固醇的能力(6、15–19)。C-20烷基化还包括卤甲基化和烷氧基甲基化,以分别形成21-卤-和21-烷氧基-16-脱氢-20-氧杂戊烷。作为酸水解的一种有吸引力的替代方法,首先用Pb(OAc)4氧化异氰基水解成异氰酸酯基之前(双异氰酸酯基和磺酰基基团)水解成相同的20-氧代甾族化合物 后一种转化是在室温下在非酸性条件下在氧化铝在二氯甲烷中的浆液中进行的。
  • Preparation of 20-keto-.DELTA..sup.16 -steroids
    申请人:Gist-Brocades N.V.
    公开号:US04551278A1
    公开(公告)日:1985-11-05
    A novel process for the preparation of 20-keto-.DELTA..sup.16 -steroids comprising reacting a 17-(isocyanosulfonylmethylene)-steroid with an alkylating agent QR.sub.4 wherein R.sub.4 is an organic group and Q is a group or atom readily displaced with a nucleophile to form a 20-isocyano-20-sulfonyl-.DELTA..sup.16 -steroid followed by hydrolysis which are intermediates for the preparation of corticosteroids and the novel intermediates formed therein.
    一种制备20-酮-.DELTA..sup.16 -类固醇的新工艺,包括将17-(异氰基磺酰亚甲基)-类固醇与烷基化试剂QR.sub.4反应,其中R.sub.4是有机基团,Q是易被亲核试剂置换的基团或原子,形成20-异氰基-20-磺酰基-.DELTA..sup.16 -类固醇,然后进行水解反应,这些化合物是皮质类固醇的中间体,同时也是制备其中新中间体的中间体。
  • ?16-20-Ketosteroide durch C2-Verl�ngerung aus ?16-17-substituierten Steroiden
    作者:Bernd Schweder、Egon Uhlig、Manfred D�ring、Dirk Kosemund
    DOI:10.1002/prac.19933350508
    日期:——
    Reactions of corticoid precursor steroids with a DELTA16-double bond and iodine, trimethylsilyl, tributylstannyl or trifluoromethanesulfonyloxy groups in 17-position were studied with the aim of introducing an acyl substituent in 17-position. Starting with the 17-trimethylsilyl compounds, using acyl chlorides and AlCl3 as a catalyst, a mixture of chlorinated compounds were obtained, among others. Better results gave palladium-catalyzed reactions, such as the cross-coupling of 17-tributylstannyl compounds with acyl chlorides or the substitution of the 17-iodides or the 17-triflates by vinyl ethers. In the reaction of the 17-iodides, different protecting groups are tolerated; thus this method is of general use. No DELTA16-17-triflates were obtained by the reaction of androsta-4-ene-3,17-dione or androsta-1,4-diene-3,17-dione with trifluoromethanesulfonyl anhydride. This is a limitation of the triflate method, which in the other cases gives the best yields (> 80 %).
  • New process for the preparation of 20-keto-delta16-steroids and new intermediate compounds formed in this process
    申请人:GIST-BROCADES N.V.
    公开号:EP0127217B1
    公开(公告)日:1988-11-02
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