多西他赛杂质57 | 518021-32-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 中文名称: 多西他赛杂质57
• 英文名称: [(1S,2S,3R,4S,7R,9S,10S,12R)-4,12-diacetyloxy-1-hydroxy-10,14,17,17-tetramethyl-9-[(2-methylpropan-2-yl)oxycarbonyloxy]-11,15-dioxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate
• CAS: 518021-32-4
• 化学式: C₃₆H₄₄O₁₃
• 分子量: 684.738
• InChiKey: DZNZBOHPJNEKSW-WKBAXMCQSA-N

物化性质

• 熔点：
  192-193 °C
• 沸点：
  764.6±60.0 °C(Predicted)
• 密度：
  1.33±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  49
• 可旋转键数：
  11
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.61
• 拓扑面积：
  178
• 氢给体数：
  1
• 氢受体数：
  13

反应信息

• 作为反应物：
  描述：

  多西他赛杂质57 在 N,N-二甲基丙烯基脲 、 3-(3-nitrophenyl)-2-(phenylsulfonyl)-1,2-oxaziridine 、 potassium tert-butylate 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 0.83h， 生成 [(1S,2S,3R,4S,7R,9S,10S,12R,16R)-4,12-diacetyloxy-10,14,20,20-tetramethyl-9-[(2-methylpropan-2-yl)oxycarbonyloxy]-11,15,18-trioxo-6,17,19-trioxapentacyclo[11.6.1.01,16.03,10.04,7]icos-13-en-2-yl] benzoate
  参考文献：
  名称：

  Diastereoselective 14β-Hydroxylation of Baccatin III Derivatives

  摘要：

  14beta-Hydroxybaccatin III, a compound with limited availability by natural sources, is the starting material for the synthesis of the second-generation anticancer taxoid ortataxel. The 7-tertbutoxycarbonyl. (1a) and 7-triethylsilyl (1b) derivatives of 14beta-hydroxybaccatin III 1,14-carbonate were synthesized from 10-deacetylbaccatin III (3). The crucial steps were (a) the C(14)beta hydroxylation of the corresponding 13-oxobaccatin III derivatives by oxaziridine-mediated electrophilic oxidation and (b) the reduction of the C-13 carbonyl group with sodium or alkylammonium borohydrides. This protocol provides a practical way for the semisynthesis of ortataxel from 10-deacetylbaccatin III, a compound readily available from various yews.

  DOI：

  10.1021/jo0347112
• 作为产物：
  描述：

  10-脱乙酰基巴卡丁 III 在 N-甲基咪唑 、 ytterbium trifluoromethanesulfonate 、 臭氧 作用下， 以 四氢呋喃 、 甲醇 、 四氯化碳 、 二氯甲烷 为溶剂， 反应 28.58h， 生成 多西他赛杂质57
  参考文献：
  名称：

  Diastereoselective 14β-Hydroxylation of Baccatin III Derivatives

  摘要：

  14beta-Hydroxybaccatin III, a compound with limited availability by natural sources, is the starting material for the synthesis of the second-generation anticancer taxoid ortataxel. The 7-tertbutoxycarbonyl. (1a) and 7-triethylsilyl (1b) derivatives of 14beta-hydroxybaccatin III 1,14-carbonate were synthesized from 10-deacetylbaccatin III (3). The crucial steps were (a) the C(14)beta hydroxylation of the corresponding 13-oxobaccatin III derivatives by oxaziridine-mediated electrophilic oxidation and (b) the reduction of the C-13 carbonyl group with sodium or alkylammonium borohydrides. This protocol provides a practical way for the semisynthesis of ortataxel from 10-deacetylbaccatin III, a compound readily available from various yews.

  DOI：

  10.1021/jo0347112

文献信息

• Selective synthesis of 14β-amino taxanes
  作者：Arturo Battaglia、Eleonora Baldelli、Ezio Bombardelli、Giacomo Carenzi、Gabriele Fontana、Maria Luisa Gelmi、Andrea Guerrini、Donato Pocar

  DOI：10.1016/j.tet.2005.05.087

  日期：2005.8

  ether was obtained in a multistep process by DBU induced silylation of 7-TES-13-oxo-baccatin III. The 7-TES-13-oxo-14β-azido-baccatin III was used as a key intermediate for the synthesis of a new family of antitumour taxanes containing amino based functional groups at the C-14 position, such as: 14β-azido, 14β-amino, 14β-amino 1, 14-carbamate, 14β-amino 1, 14-thiocarbamate, and 14β-amino N-tert-butoxycarbonyl-1

  碱诱导的7-三乙基甲硅烷基-（7-TES-）和7-叔丁氧羰基-（7-BOC-）保护的13-氧代-baccatins的H-14脱质子化反应得到相应的烯醇化物，将其用亲电子氮选择性胺化供体，例如偶氮二羧酸盐和甲苯磺酰基叠氮化物。特别地，甲苯磺酰基叠氮化物给出了相应的7-BOC-和7-TES-13-氧代-14β-叠氮基-浆果赤霉素III。或者，通过NaN 3制备最后一种化合物在氧化（硝酸铈铵）条件下诱导了7-TES-13-氧-浆果赤霉素III的13-甲硅烷基烯醇醚的叠氮化。13-甲硅烷基烯醇醚是通过DBU诱导的7-TES-13-氧代浆果赤霉素III的甲硅烷基化在多步法中获得的。7-TES-13-oxo-14β-叠氮基浆果赤霉素III用作合成新的抗肿瘤紫杉烷类新化合物的关键中间体，该类抗癌紫杉烷在C-14位置含有基于氨基的官能团，例如：14β-叠氮基， 14β-氨基，14β-氨基1,14 -氨基甲