(3R,4R,5R)-ethyl 4-(tert-butoxycarbonylamino)-3-hydroxy-5-methylheptanoate | 141394-79-8

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: (3R,4R,5R)-ethyl 4-(tert-butoxycarbonylamino)-3-hydroxy-5-methylheptanoate
• 英文别名: (3R,4R,5R)-Boc-isostatine ethyl ester；ethyl (3R,4R,5R)-3-hydroxy-5-methyl-4-[(2-methylpropan-2-yl)oxycarbonylamino]heptanoate
• CAS: 141394-79-8
• 化学式: C₁₅H₂₉NO₅
• 分子量: 303.399
• InChiKey: VPZGRENKXUDARB-NQBHXWOUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  21
• 可旋转键数：
  10
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.87
• 拓扑面积：
  84.9
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (3R,4R,5R)-ethyl 4-(tert-butoxycarbonylamino)-3-hydroxy-5-methylheptanoate 在 吡啶 、 三乙胺 、 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 反应 24.75h， 生成 [(2R,3R)-2-[(2R)-butan-2-yl]-5-oxopyrrolidin-3-yl] acetate
  参考文献：
  名称：

  Synthesis and properties of the eight isostatine stereoisomers

  摘要：

  The eight possible stereoisomers of isostatine, (3S,4R,5S)-4-amino-3-hydroxy-5-methylheptanoic acid, have been synthesized from the four isomeric D- and L-isoleucinals and D- and L-allo-isoleucinals and ethyl lithioacetate. The eight isomers have been compared for the GC retention times of their bis(trifluoroacetyl) methyl ester derivatives and the H-1 NMR properties of the gamma-lactams derived from them. The natural isomer was shown to be the 3S,4R,5S isomer.

  DOI：

  10.1021/jo00037a012
• 作为产物：
  描述：

  ((2r,3r)-1-羟基-3-甲基-2-戊基)氨基甲酸叔丁酯 在 吡啶 、 chromium(VI) oxide 、 lithium diisopropyl amide 作用下， 以 二氯甲烷 为溶剂， 反应 1.67h， 生成 (3R,4R,5R)-ethyl 4-(tert-butoxycarbonylamino)-3-hydroxy-5-methylheptanoate
  参考文献：
  名称：

  Synthesis and properties of the eight isostatine stereoisomers

  摘要：

  The eight possible stereoisomers of isostatine, (3S,4R,5S)-4-amino-3-hydroxy-5-methylheptanoic acid, have been synthesized from the four isomeric D- and L-isoleucinals and D- and L-allo-isoleucinals and ethyl lithioacetate. The eight isomers have been compared for the GC retention times of their bis(trifluoroacetyl) methyl ester derivatives and the H-1 NMR properties of the gamma-lactams derived from them. The natural isomer was shown to be the 3S,4R,5S isomer.

  DOI：

  10.1021/jo00037a012

文献信息

• Total Synthesis of the Bicyclic Depsipeptide HDAC Inhibitors Spiruchostatins A and B, 5′′-<i>epi</i>-Spiruchostatin B, FK228 (FR901228) and Preliminary Evaluation of Their Biological Activity
  作者：Koichi Narita、Takuya Kikuchi、Kazuhiro Watanabe、Toshiya Takizawa、Takamasa Oguchi、Kyosuke Kudo、Keisuke Matsuhara、Hideki Abe、Takao Yamori、Minoru Yoshida、Tadashi Katoh

  DOI：10.1002/chem.200901552

  日期：2009.10.26

  Julia–Kocienski olefination of a 1,3‐propanediol‐derived sulfone and a L‐ or D‐malic acid‐derived aldehyde to access the most synthetically challenging unit, (3S or 3R,4E)‐3‐hydroxy‐7‐mercaptohept‐4‐enoic acid, present in a D‐alanine‐ or D‐valine‐containing segment; ii) a condensation of a D‐valine‐D‐cysteine‐ or D‐allo‐isoleucine‐D‐cysteine‐containing segment with a D‐alanine‐ or D‐valine‐containing

  双环去肽肽组蛋白去乙酰化酶（HDAC）抑制剂spiruchostatins A和B，5'′- epi- spiruchostatin B和FK228可以通过聚合和统一的方式高效合成。合成方法涉及以下关键步骤：i）1，3-丙二醇衍生的砜和L-或D-苹果酸衍生的醛的Julia-Kocienski烯化反应，以合成最具挑战性的单元（3 S或3 R，4 E）-3-羟基-7-巯基庚基-4-烯酸，存在于含有D-丙氨酸或D-缬氨酸的链段中；ii）D-缬氨酸-D-半胱氨酸-或D的缩合-同种异体-isoleucine- d -半胱氨酸含与段d -alanine-或d含缬氨酸段直接组装相应的开环-acids; 和iii）的大环化开环使用椎名法或光延法构造必需15-或16-元大环内酯-酸。本合成已建立了螺旋藻抑素B的C5'立体化学。此外，对合成的二肽的HDAC抑制测定和细胞生长抑制分析确定了其效力的顺序，并揭示了
• Synthesis and properties of the eight isostatine stereoisomers
  作者：Kenneth L. Rinehart、Ryuichi Sakai、Vimal Kishore、David W. Sullins、Kai Ming Li

  DOI：10.1021/jo00037a012

  日期：1992.5

  The eight possible stereoisomers of isostatine, (3S,4R,5S)-4-amino-3-hydroxy-5-methylheptanoic acid, have been synthesized from the four isomeric D- and L-isoleucinals and D- and L-allo-isoleucinals and ethyl lithioacetate. The eight isomers have been compared for the GC retention times of their bis(trifluoroacetyl) methyl ester derivatives and the H-1 NMR properties of the gamma-lactams derived from them. The natural isomer was shown to be the 3S,4R,5S isomer.