tert-butyl (2R,3S)-5-hydroxy-2-((1R,2S)-2-methoxy-2-methyl-1-((tritylthio)amino)pentyl)-3-((Z)-prop-1-en-1-yl)pyrrolidine-1-carboxylate | 408505-24-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 三苯基化合物
• 英文名称: tert-butyl (2R,3S)-5-hydroxy-2-((1R,2S)-2-methoxy-2-methyl-1-((tritylthio)amino)pentyl)-3-((Z)-prop-1-en-1-yl)pyrrolidine-1-carboxylate
• CAS: 408505-24-8
• 化学式: C₃₈H₅₀N₂O₄S
• 分子量: 630.892
• InChiKey: KKOOXINTSCJESL-UDXJPUJMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.31
• 重原子数：
  45.0
• 可旋转键数：
  12.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  71.03
• 氢给体数：
  2.0
• 氢受体数：
  6.0

反应信息

• 作为反应物：
  描述：

  tert-butyl (2R,3S)-5-hydroxy-2-((1R,2S)-2-methoxy-2-methyl-1-((tritylthio)amino)pentyl)-3-((Z)-prop-1-en-1-yl)pyrrolidine-1-carboxylate 在 甲醇 、 三氟化硼乙醚 、 4-甲基苯磺酸吡啶 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 20.5h， 生成 tert-butyl (2R,3S,5R)-5-cyano-2-{(1R,2S)-2-methoxy-2-methyl-1-[(acetylamino)pentyl]}-3-[(1Z)-prop-1-enyl]pyrrolidine-1-carboxylate
  参考文献：
  名称：

  Enantioselective Synthesis of Antiinfluenza Compound A-315675

  摘要：

  Drug discovery efforts at Abbott Laboratories have led to the identification of influenza neuraminidase inhibitor A-315675 (1) as a candidate for development as an antiinfluenza drug. A convergent, stereoselective synthesis of this highly functionalized pyrrolidine is reported that utilizes pyrrolinone 2 as the key intermediate. The C5, C6 stereochemistry was established through a diastereoselective condensation of chiral imine compound 3 with silyloxypyrrole 4 to give pyrrolinone 2. The stereochemical outcome of this reaction depended critically on the choice of the imine functional group (FG), with tritylsulfenyl and (R)-toluenesulfinyl providing the desired products in good yields as crystalline intermediates. Conversion of pyrrolinone 2 into 1 was accomplished in seven subsequent steps, including Michael addition of cis-1-propenylcuprate at C4 and introduction of a cyano group as a carboxylic acid equivalent at C2.

  DOI：

  10.1021/jo0162890
• 作为产物：
  描述：

  (2E)-2-methyl-2-penten-1-ol 在 4 A molecular sieve titanium(IV) isopropylate 、 叔丁基过氧化氢 、 lithium aluminium tetrahydride 、 D-(-)-酒石酸二甲酯 、 4 A molecular sieve 、 Celite 、 三氟化硼乙醚 、 氢气 、 sodium hexamethyldisilazane 、 4-甲基苯磺酸吡啶 、 sodium hydride 、 二异丁基氢化铝 、 magnesium sulfate 、 magnesium 、 1,2-二溴乙烷 、 三乙胺 、 pyridinium chlorochromate 、 三甲氧基磷 作用下， 以 四氢呋喃 、 乙醚 、 癸烷 、 正己烷 、 二氯甲烷 为溶剂， 反应 69.92h， 生成 tert-butyl (2R,3S)-5-hydroxy-2-((1R,2S)-2-methoxy-2-methyl-1-((tritylthio)amino)pentyl)-3-((Z)-prop-1-en-1-yl)pyrrolidine-1-carboxylate
  参考文献：
  名称：

  Enantioselective Synthesis of Antiinfluenza Compound A-315675

  摘要：

  Drug discovery efforts at Abbott Laboratories have led to the identification of influenza neuraminidase inhibitor A-315675 (1) as a candidate for development as an antiinfluenza drug. A convergent, stereoselective synthesis of this highly functionalized pyrrolidine is reported that utilizes pyrrolinone 2 as the key intermediate. The C5, C6 stereochemistry was established through a diastereoselective condensation of chiral imine compound 3 with silyloxypyrrole 4 to give pyrrolinone 2. The stereochemical outcome of this reaction depended critically on the choice of the imine functional group (FG), with tritylsulfenyl and (R)-toluenesulfinyl providing the desired products in good yields as crystalline intermediates. Conversion of pyrrolinone 2 into 1 was accomplished in seven subsequent steps, including Michael addition of cis-1-propenylcuprate at C4 and introduction of a cyano group as a carboxylic acid equivalent at C2.

  DOI：

  10.1021/jo0162890

文献信息

• A highly diastereoselective vinylogous Mannich condensation and 1,4-conjugate addition of (Z)-propenyl cuprate in the synthesis of an influenza neuraminidase inhibitor
  作者：David M. Barnes、Lakshmi Bhagavatula、John DeMattei、Ashok Gupta、David R. Hill、Sukumar Manna、Maureen A. McLaughlin、Paul Nichols、Ramiya Premchandran、Michael W. Rasmussen、Zhenping Tian、Steven J. Wittenberger

  DOI：10.1016/s0957-4166(03)00597-4

  日期：2003.11

  A practical synthesis of neuraminidase influenza inhibitor, A-322278, has been developed. Asymmetry is introduced into the synthesis by an enzyme mediated ester hydrolysis. A highly diastereoselective vinylogous Mannich condensation reaction of N-Boc-2-tert-butyldimethylsilyloxypyrrole (TBSOP) and an N-(triphenylmethylsulfenyl)imine proceeds under thermodynamic control to assemble the framework. A

  已经开发了神经氨酸酶流感抑制剂A-322278的实用合成方法。通过酶介导的酯水解将不对称性引入合成中。N -Boc-2-叔丁基二甲基甲硅烷基氧基吡咯（TBSOP）和N-（三苯基甲基亚磺酰基）亚胺的高度非对映选择性乙烯基类曼尼希缩合反应在热力学控制下进行以组装骨架。观察到在添加1，4-共轭物期间从铜酸盐试剂转移（Z）-和（E）-丙烯基部分的明显的温度依赖性速率差异。将氰化物非常有选择性地加到N-酰基亚胺中间体上来控制最终的立体中心。