2-methoxy-4-[(8S,9S,13S,14S)-3-methoxy-13-methyl-6,7,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthren-17-yl]-2,5-dihydro-1,3-oxazole | 95498-76-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 英文名称: 2-methoxy-4-[(8S,9S,13S,14S)-3-methoxy-13-methyl-6,7,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthren-17-yl]-2,5-dihydro-1,3-oxazole
• CAS: 95498-76-3
• 化学式: C₂₃H₂₉NO₃
• 分子量: 367.488
• InChiKey: NLUVLMOZCPDZEH-WRRMCANASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  27
• 可旋转键数：
  3
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.61
• 拓扑面积：
  40
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-methoxy-4-[(8S,9S,13S,14S)-3-methoxy-13-methyl-6,7,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthren-17-yl]-2,5-dihydro-1,3-oxazole 在 硫酸 作用下， 以 四氢呋喃 为溶剂， 反应 18.0h， 生成
  参考文献：
  名称：

  Synthesis of 17-(2-Methoxy-3-oxazolin-4-yl)-, 17-(3-Oxazolin-4-yl)-, and 17-(2-Oxazolin-4-ylidene) Substituted Steroids and Their Use as Precursors of Corticosteroids

  摘要：

  17-(Isocyanotosylmethylene)steroids 4 are useful intermediates in the conversion of 17-oxosteroids into 17-(hydroxyacetyl)steroids. The 21-CH2OH group is effectively introduced by a base-mediated reaction of compounds 4 with formaldehyde and MeOH to give 17-(2-methoxy-3-oxazolin-4-yl) derivatives 12, which by acid hydrolysis give 17-(hydroxyacetyl)steroids 10 and 16 in high yields. Partial hydrolysis of the same oxazoline derivatives 12 provides the 17-(hydroxyacetyl) cortico side chain of 13 equipped with a formyl-protected hydroxy group. 3-Oxazolinyl and 2-oxazolinylidene steroid derivatives 19, 20, and 21, without a 2-methoxy substituent, are discussed as alternatives of 12.

  DOI：

  10.1021/jo00098a024
• 作为产物：
  描述：

  甲醇 、 聚合甲醛 、 (E)-17-(isocyanotosylmethylene)-3-methoxyestra-1,3,4(10)-triene 在 苄基三乙基氯化铵 sodium hydroxide 作用下， 以 苯 为溶剂， 生成 2-methoxy-4-[(8S,9S,13S,14S)-3-methoxy-13-methyl-6,7,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthren-17-yl]-2,5-dihydro-1,3-oxazole
  参考文献：
  名称：

  Synthesis of 17-(2-Methoxy-3-oxazolin-4-yl)-, 17-(3-Oxazolin-4-yl)-, and 17-(2-Oxazolin-4-ylidene) Substituted Steroids and Their Use as Precursors of Corticosteroids

  摘要：

  17-(Isocyanotosylmethylene)steroids 4 are useful intermediates in the conversion of 17-oxosteroids into 17-(hydroxyacetyl)steroids. The 21-CH2OH group is effectively introduced by a base-mediated reaction of compounds 4 with formaldehyde and MeOH to give 17-(2-methoxy-3-oxazolin-4-yl) derivatives 12, which by acid hydrolysis give 17-(hydroxyacetyl)steroids 10 and 16 in high yields. Partial hydrolysis of the same oxazoline derivatives 12 provides the 17-(hydroxyacetyl) cortico side chain of 13 equipped with a formyl-protected hydroxy group. 3-Oxazolinyl and 2-oxazolinylidene steroid derivatives 19, 20, and 21, without a 2-methoxy substituent, are discussed as alternatives of 12.

  DOI：

  10.1021/jo00098a024

文献信息

• New process for the preparation of 21-hydroxy-20-keto-delta 16-steroids and new intermediate compounds formed in this process
  申请人：GIST-BROCADES N.V.

  公开号：EP0123736A1

  公开（公告）日：1984-11-07

  The invention relates to a new process for the preparation of 21-hydroxy-20-keto-steroids from 17-isocyano-sulfonylmethylene-steroids whereby simultaneously an unsaturated bond is introduced between C16 and C17. Furthermore, the invention relates to new intermediate compounds formed in this process and their preparation.

  本发明涉及一种从 17-异氰基磺酰亚甲基类固醇制备 21-羟基-20-酮类固醇的新工艺，在该工艺中，同时在 C16 和 C17 之间引入不饱和键。此外，本发明还涉及在该工艺中形成的新中间化合物及其制备方法。
• Synthesis of Triamcinolone Acetonide from 9-Hydroxy-3-methoxy-17-(2-methoxy-3-oxazolin-4-yl)androsta-3,5,16-triene
  作者：Daan van Leusen、Albert M. van Leusen

  DOI：10.1021/jo00103a063

  日期：1994.12
• Synthesis of 17-(2-Methoxy-3-oxazolin-4-yl)-, 17-(3-Oxazolin-4-yl)-, and 17-(2-Oxazolin-4-ylidene) Substituted Steroids and Their Use as Precursors of Corticosteroids
  作者：Daan van Leusen、Jacobus N. M. Batist、Jia Lei、Erik van Echten、Antoon C. Brouwer、Albert M. van Leusen

  DOI：10.1021/jo00098a024

  日期：1994.9

  17-(Isocyanotosylmethylene)steroids 4 are useful intermediates in the conversion of 17-oxosteroids into 17-(hydroxyacetyl)steroids. The 21-CH2OH group is effectively introduced by a base-mediated reaction of compounds 4 with formaldehyde and MeOH to give 17-(2-methoxy-3-oxazolin-4-yl) derivatives 12, which by acid hydrolysis give 17-(hydroxyacetyl)steroids 10 and 16 in high yields. Partial hydrolysis of the same oxazoline derivatives 12 provides the 17-(hydroxyacetyl) cortico side chain of 13 equipped with a formyl-protected hydroxy group. 3-Oxazolinyl and 2-oxazolinylidene steroid derivatives 19, 20, and 21, without a 2-methoxy substituent, are discussed as alternatives of 12.