(2R,4S)-4-[4-[4-[4-[[2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-1-piperazinyl]phenyl]-2,4-dihydro-2-[(2S,3R)-3-[(1,1-dimethylethyl)dimethylsiloxy-2-butyl]]-3H-1,2,4-triazol-3-one | 214117-56-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪烷类
• 英文名称: (2R,4S)-4-[4-[4-[4-[[2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-1-piperazinyl]phenyl]-2,4-dihydro-2-[(2S,3R)-3-[(1,1-dimethylethyl)dimethylsiloxy-2-butyl]]-3H-1,2,4-triazol-3-one
• 英文别名: 2-[(2S,3R)-3-[tert-butyl(dimethyl)silyl]oxybutan-2-yl]-4-[4-[4-[4-[[(2R,4S)-2-(2,4-dichlorophenyl)-2-(1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]piperazin-1-yl]phenyl]-1,2,4-triazol-3-one
• CAS: 214117-56-3
• 化学式: C₄₁H₅₂Cl₂N₈O₅Si
• 分子量: 835.906
• InChiKey: SYDGZOTWURCCEM-FGYXZAHFSA-N

物化性质

• 沸点：
  870.4±75.0 °C(Predicted)
• 密度：
  1.29±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7.58
• 重原子数：
  57
• 可旋转键数：
  14
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  110
• 氢给体数：
  0
• 氢受体数：
  10

反应信息

• 作为反应物：
  描述：

  (2R,4S)-4-[4-[4-[4-[[2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-1-piperazinyl]phenyl]-2,4-dihydro-2-[(2S,3R)-3-[(1,1-dimethylethyl)dimethylsiloxy-2-butyl]]-3H-1,2,4-triazol-3-one 在 四丁基氟化铵 作用下， 以 四氢呋喃 为溶剂， 反应 17.0h， 以91%的产率得到(2R,4S)-4-[4-[4-[4-[[2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-1-piperazinyl]phenyl]-2,4-dihydro-2-[(2S,3R)-(3-hydroxy-2-butyl)]-3H-1,2,4-triazol-3-one
  参考文献：
  名称：

  Pd-catalyzed aminations of aryl triazolones: Effective synthesis of hydroxyitraconazole enantiomers

  摘要：

  A palladium-catalyzed amination of triazolone 3 by piperazine 2 was used as the key step in an efficient synthesis of highly enantiomerically-pure hydroxyitraconazole isomers. Compound 2 (>99%ee) was prepared by reaction of an achiral phenol precursor with the corresponding dioxolyl tosylate (>99% ee), and 3 was made by alkylation of 6 with 7 (>99%ee). (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(98)01493-2
• 作为产物：
  描述：

  1-(2,4-二氯l苯基)-2-(1H-1,2,4-噻唑-1-基)-乙酮 在 氢氧化钾 、 tris-(dibenzylideneacetone)dipalladium(0) 、 三氟甲磺酸 、 sodium hydride 、 (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl 、 sodium t-butanolate 作用下， 以 水 、 N,N-二甲基甲酰胺 、 异丙醇 、 甲苯 为溶剂， 反应 92.0h， 生成 (2R,4S)-4-[4-[4-[4-[[2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-1-piperazinyl]phenyl]-2,4-dihydro-2-[(2S,3R)-3-[(1,1-dimethylethyl)dimethylsiloxy-2-butyl]]-3H-1,2,4-triazol-3-one
  参考文献：
  名称：

  Total synthesis of (2R,4S,2′S,3′R)-hydroxyitraconazole: implementations of a recycle protocol and a mild and safe phase-transfer reagent for preparation of the key chiral units

  摘要：

  A convergent total synthesis of enantiomerically-pure (2R,4S,2'S,3'R)-hydroxyitraconazole 1b is described. The left dioxolane portion of the molecule was prepared in good yield by the conversion of (S)-10 to the corresponding enantiomerically and diastereomerically-pure acetonide (2R,4R)-3 by a recycle protocol involving diastereoselective crystallization of the tosylate salt, followed by re-equilibration of the mother liquor and crystallization. The right-hand triazolone moeity (2S,3R)-4 was generated by alkyaltion of triazolone 6 with enantiomerically pure cyclic sulfate (4R,5R)-7 under mild and essentially non-hazardous reaction conditions (TDA-1, K2CO3, acetonitrile). (C) 2003 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2003.01.001