氢化铝锂 → 3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentane-1,5-diol

HRID 40944

反应方程式

HRID 40944 反应方程式
[CH3:1][Si:2]([CH3:35])([CH3:34])[CH2:3][CH2:4][O:5][CH2:6][N:7]1[C:11]2[N:12]=[CH:13][N:14]=[C:15]([C:16]3[CH:17]=[N:18][N:19]([CH:21]([CH2:28][C:29](OCC)=[O:30])[CH2:22][C:23](OCC)=[O:24])[CH:20]=3)[C:10]=2[CH:9]=[CH:8]1.[AlH4-].[Li+]>C1COCC1>[CH3:35][Si:2]([CH3:1])([CH3:34])[CH2:3][CH2:4][O:5][CH2:6][N:7]1[C:11]2[N:12]=[CH:13][N:14]=[C:15]([C:16]3[CH:17]=[N:18][N:19]([CH:21]([CH2:22][CH2:23][OH:24])[CH2:28][CH2:29][OH:30])[CH:20]=3)[C:10]=2[CH:9]=[CH:8]1

参与物

4

反应物 2

HCID 28112氢化铝锂HCID 57477879Diethyl 3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentanedioate

产物 1

HCID 574778783-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentane-1,5-diol收率 76%

试剂、催化剂与溶剂 1

HCID 8028四氢呋喃溶剂2 次

实验过程

Diethyl 3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentanedioate, prepared substantially as described in Example 407 (0.80 g, 0.0016 mol), was dissolved in THF (40 mL, 0.49 mol) and cooled in an ice bath under a nitrogen atmosphere. To this mixture, 1.0 M lithium tetrahydroaluminate in THF (3.2 mL) was added slowly. The reaction was stirred for 1 h, quenched with ice and partitioned between ethyl acetate and 1 N HCl. The organic layer was washed with brine, dried over magnesium sulfate and concentrated to give an amber oil. The product was purified by FCC on silica gel eluting with an ethyl acetate:methanol gradient to give 3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentane-1,5-diol as a clear viscous oil (0.51 gm, 76%), LC/MS (M+H)+: 418, 1H NMR (DMSO-d6) δ, 8.85(s, 1H), 8.41(s, 1H), 8.37(s, 1H), 7.45(d,1H), 6.83(d, 1H), 5.73(s, 2H), 4.91(m, 1H), 3.75(m,2H), 3.59(m, 2H), 3.45(m,2H), 2.18(m, 4H), 0.95(m,2H), 0.1(s, 9H).

后处理

  1. temperaturecooled in an ice bath under a nitrogen atmosphere
  2. customquenched with ice
  3. custompartitioned between ethyl acetate and 1 N HCl
  4. washThe organic layer was washed with brine
  5. dry with materialdried over magnesium sulfate
  6. concentrationconcentrated
  7. customto give an amber oil
  8. customThe product was purified by FCC on silica gel eluting with an ethyl acetate

来源与证据

ORD记录
ord-0d73e31b719f4738af3f1d6e04ea6796
来源数据集
uspto-grants-2013_09
专利号
US08530485B2

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