(5R,4R)-6-tert-butyldimethylsilyloxy-5-methyl-4-(4-nitrobenzoyloxy)hex-1-ene | 197771-04-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (5R,4R)-6-tert-butyldimethylsilyloxy-5-methyl-4-(4-nitrobenzoyloxy)hex-1-ene
• 英文别名: [(2R,3R)-1-[tert-butyl(dimethyl)silyl]oxy-2-methylhex-5-en-3-yl] 4-nitrobenzoate
• CAS: 197771-04-3
• 化学式: C₂₀H₃₁NO₅Si
• 分子量: 393.555
• InChiKey: RRJWZHOVOTYVGQ-CRAIPNDOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.35
• 重原子数：
  27
• 可旋转键数：
  10
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  81.4
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (5R,4R)-6-tert-butyldimethylsilyloxy-5-methyl-4-(4-nitrobenzoyloxy)hex-1-ene 在 sodium hydroxide 、 N-碘代丁二酰亚胺 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 生成 tert-Butyl-[(2R,3R)-3-(1-ethoxy-2-iodo-ethoxy)-2-methyl-hex-5-enyloxy]-dimethyl-silane
  参考文献：
  名称：

  Studies on the total synthesis of the macrolide antitumor agent rhizoxin. 1. Synthesis of the C3C13 segment

  摘要：

  An asymmetric synthesis of the C3-C13 segment of rhizoxin is described in which the relative stereochemistry of C7 and C8 is established through a chelation-controlled allylation followed by Mitsunobu inversion, and the pyran ring is constructed by a photochemically initiated 6-exo radical cyclization. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0040-4039(97)01780-2
• 作为产物：
  描述：

  (2R,3S)-1-(benzyloxy)-2-methylhex-5-en-3-ol 在 4-二甲氨基吡啶 、 三氯化硼 、 三乙胺 、 三苯基膦 、 偶氮二甲酸二乙酯 作用下， 以 四氢呋喃 、 二氯甲烷 、 甲苯 为溶剂， 生成 (5R,4R)-6-tert-butyldimethylsilyloxy-5-methyl-4-(4-nitrobenzoyloxy)hex-1-ene
  参考文献：
  名称：

  Studies on the total synthesis of the macrolide antitumor agent rhizoxin. 1. Synthesis of the C3C13 segment

  摘要：

  An asymmetric synthesis of the C3-C13 segment of rhizoxin is described in which the relative stereochemistry of C7 and C8 is established through a chelation-controlled allylation followed by Mitsunobu inversion, and the pyran ring is constructed by a photochemically initiated 6-exo radical cyclization. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0040-4039(97)01780-2

文献信息

• Total Synthesis of Rhizoxin D, a Potent Antimitotic Agent from the Fungus <i>Rhizopus chinensi</i>s
  作者：James D. White、Paul R. Blakemore、Neal J. Green、E. Bryan Hauser、Mark A. Holoboski、Linda E. Keown、Christine S. Nylund Kolz、Barton W. Phillips

  DOI：10.1021/jo020537q

  日期：2002.11.1

  configuration at C5 of 2 through a stereoselective addition of the radical derived from dehalogenation of 21 at the beta carbon of the (Z)-alpha,beta-unsaturated ester. Aldehyde 29 was obtained from phenylthioacetal 24 and condensed with phosphorane 30, representing subunit B, in a Wittig reaction that gave the (E,E)-dienoate 31. This ester was converted to aldehyde 33 in preparation for coupling with

  根霉菌素D（2）由分别代表C3-C9，C10-C13，C14-C19和C20-C27的四个亚基A，B，C和D合成。亚基A是通过碘代乙缩醛21的环化制备的，该碘代乙缩醛21通过在（Z）-α，β-不饱和酯的β碳上立体选择性地添加衍生自21的脱卤基团而将C5的构型设定为2。乙醛29从苯硫缩醛24中获得，并在代表Wittig的Wittig反应中与代表亚基B的磷烷30缩合。该酯被转化为醛33，以准备与亚基C偶联。由炔丙醇经六步获得甲基酮形式的甲基酮55。33的醇醛缩醛反应与用（+）-DIPCl制备的55的烯醇缩醛反应，得到具有（13S）-构型的期望的β-羟基酮56，与（13R）-非对映异构体的比率为17-20：1。还原成抗二醇57并作为TIPS醚58进行选择性保护后，将C15羟基酯化得到膦酸酯59。衍生自δ-内酯60的醛62的分子内Wadsworth-Emmons反应提供了大内酯63，该大内酯63在
• Studies on the total synthesis of the macrolide antitumor agent rhizoxin. 1. Synthesis of the C3C13 segment
  作者：James D. White、Christine S. Nylund、Neal J. Green

  DOI：10.1016/s0040-4039(97)01780-2

  日期：1997.10

  An asymmetric synthesis of the C3-C13 segment of rhizoxin is described in which the relative stereochemistry of C7 and C8 is established through a chelation-controlled allylation followed by Mitsunobu inversion, and the pyran ring is constructed by a photochemically initiated 6-exo radical cyclization. (C) 1997 Elsevier Science Ltd.