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(2R,3S,5R,7R,9R,11R,13R,15S,16E,18R,19R)-19-O-((1,1-dimethylethyl)dimethylsilyl)-1,3:5,7:9,11:13,15-tetrakis-O-(methylethylidene)-2,18,20-trimethyl-16-heneicosene-1,3,5,7,9,11,13,15,19-momol | 142946-38-1

中文名称
——
中文别名
——
英文名称
(2R,3S,5R,7R,9R,11R,13R,15S,16E,18R,19R)-19-O-((1,1-dimethylethyl)dimethylsilyl)-1,3:5,7:9,11:13,15-tetrakis-O-(methylethylidene)-2,18,20-trimethyl-16-heneicosene-1,3,5,7,9,11,13,15,19-momol
英文别名
tert-butyl-[(E,3R,4R)-6-[(4S,6S)-6-[[(4R,6R)-6-[[(4S,6S)-2,2-dimethyl-6-[[(4S,5R)-2,2,5-trimethyl-1,3-dioxan-4-yl]methyl]-1,3-dioxan-4-yl]methyl]-2,2-dimethyl-1,3-dioxan-4-yl]methyl]-2,2-dimethyl-1,3-dioxan-4-yl]-2,4-dimethylhex-5-en-3-yl]oxy-dimethylsilane
(2R,3S,5R,7R,9R,11R,13R,15S,16E,18R,19R)-19-O-((1,1-dimethylethyl)dimethylsilyl)-1,3:5,7:9,11:13,15-tetrakis-O-(methylethylidene)-2,18,20-trimethyl-16-heneicosene-1,3,5,7,9,11,13,15,19-momol化学式
CAS
142946-38-1
化学式
C42H78O9Si
mdl
——
分子量
755.161
InChiKey
XIBZNRFBDRSCIC-RNQQQQEZSA-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):
    9.91
  • 重原子数:
    52
  • 可旋转键数:
    13
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.95
  • 拓扑面积:
    83.1
  • 氢给体数:
    0
  • 氢受体数:
    9

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

点击查看最新优质反应信息

文献信息

  • Alkylation and Reductive Decyanation of 4-Cyano-2,2-dimethyl-1,3-dioxanes (Cyanohydrin Acetonides)
    作者:Scott D. Rychnovsky、Sonja S. Swenson
    DOI:10.1021/jo961826f
    日期:1997.3.1
    Cyanohydrin acetonide couplings are a very effective methodology for the synthesis of polyol chains. We report a detailed investigation of the alkylation and reductive decyanation of 4-cyano-2,2-dimethyl-1,3-dioxanes (cyanohydrin acetonides). The various parameters influencing the reaction were investigated, including the choice of base, electrophile, time, and temperature. It was found that LHMDS was greatly superior to LDA in the alkylation of allylic and propargylic halides, but no such difference was found with saturated alkylating agents. The minor side products obtained from these reactions were identified, and methods for their minimization were developed. These studies led to a greater understanding of these alkylation reactions which were key steps in the convergent synthesis of polyene macrolide antibiotics like roxaticin and roflamycoin.
  • Synthesis of the polyol chain of (-)-roxaticin.
    作者:Scott D. Rychnovsky、Cesar Rodriguez
    DOI:10.1021/jo00044a007
    日期:1992.8
    Tetraacetonide 19, which incorporates the 10 stereogenic centers of (-)-roxaticin, was chosen as a test case to develop a convergent synthesis of alternating polyol chains. This synthesis uses a stepwise alkylation of dibromide 16 followed by a stereoselective reductive decyanation in a three-fold convergent strategy.
  • Convergent Synthesis of the Polyene Macrolide (-)-Roxaticin
    作者:Scott D. Rychnovsky、Rebecca C. Hoye
    DOI:10.1021/ja00084a017
    日期:1994.3
    ether followed by elaboration of the polyene using Wollenberg's method gave a tetraenal. The macrocyclic ring was closed using an intramolecular Horner-Emmons Wittig reaction, and acid-catalyzed deprotection completed the synthesis of roxaticin. Our synthesis of roxaticin illustrates a first generation approach to the highly convergent synthesis of polyene macrolide antibiotics that should ultimately
    (-)-Roxaticin 是由多元醇四丙酮化物 5 合成的,它是通过三重收敛路线制备的。使用 Noyori 不对称氢化制备每个光学纯的结构单元(2、3 和 4)。二溴化物 3 与氰醇丙酮化物 2 和 4 连续烷基化,然后立体选择性还原脱氰得到四丙酮化物 5。 由于多烯链对氧化脱保护的不稳定性,最初在关键保护步骤中使用 1-甲基环丙基醚制备罗沙星的方法未成功。1,3-苯并二硫戊环-2-基 (BDT) 醚在模型研究中表现良好,并用于 roxaticin 系统。将 roxaticin 前体保护为 BDT 醚,然后使用 Wollenberg 方法制备多烯,得到四烯醛。大环使用分子内Horner-Emmons Wittig反应闭合,酸催化脱保护完成roxaticin的合成。我们合成 roxaticin 说明了多烯大环内酯类抗生素的高度收敛合成的第一代方法,最终可用于制备立体化学和结构类似物
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