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

HRID 1843520

반응식

HRID 1843520 반응식
[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

참가 물질

4

반응물 2

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

생성물 1

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

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

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).

후처리

  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

출처 및 근거

ORD 기록
ord-1aa90ae906d44f29bc09c501ed2f898d
출처 데이터셋
uspto-grants-2015_02
특허 번호
US08946245B2

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