1,8-Diazabicyclo(5.4.0)undec-7-ene → (4-(1-(3-(Cyanomethyl)-1-(ethylsulfonyl)azetidin-3-yl)-1H-pyrazol-4-yl)-7H-pyrrolo(2,3-d)pyrimidin-7-yl)methyl pivalate

HRID 1692976ノート

反応式

HRID 1692976 の反応式
[C:1]([O:7][CH2:8][N:9]1[C:13]2[N:14]=[CH:15][N:16]=[C:17]([C:18]3[CH:19]=[N:20][NH:21][CH:22]=3)[C:12]=2[CH:11]=[CH:10]1)(=[O:6])[C:2]([CH3:5])([CH3:4])[CH3:3].[CH2:23]([S:25]([N:28]1[CH2:31][C:30](=[CH:32][C:33]#[N:34])[CH2:29]1)(=[O:27])=[O:26])[CH3:24].C1CCN2C(=NCCC2)CC1>CN(C)C=O.C1CCN2C(=NCCC2)CC1>[C:1]([O:7][CH2:8][N:9]1[C:13]2[N:14]=[CH:15][N:16]=[C:17]([C:18]3[CH:19]=[N:20][N:21]([C:30]4([CH2:32][C:33]#[N:34])[CH2:31][N:28]([S:25]([CH2:23][CH3:24])(=[O:27])=[O:26])[CH2:29]4)[CH:22]=3)[C:12]=2[CH:11]=[CH:10]1)(=[O:6])[C:2]([CH3:5])([CH3:4])[CH3:3]

参加物

6

反応物 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 578688542-(1-(Ethylsulfonyl)azetidin-3-ylidene)acetonitrileHCID 57868869(4-(1H-Pyrazol-4-yl)-7H-pyrrolo(2,3-d)pyrimidin-7-yl)methyl pivalate

生成物 1

HCID 66824167(4-(1-(3-(Cyanomethyl)-1-(ethylsulfonyl)azetidin-3-yl)-1H-pyrazol-4-yl)-7H-pyrrolo(2,3-d)pyrimidin-7-yl)methyl pivalate収率 89.5%

試薬・触媒・溶媒 2

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-ene触媒HCID 6228Dimethylformamide溶媒

実験手順

To a suspension of [4-(1H-pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl]methyl pivalate (19, 10.0 g, 33.4 mmol) and 2-(1-(ethylsulfonyl)azetidin-3-ylidene)acetonitrile (11, 6.22 g, 33.4 mmol, 1.0 equiv) in N,N-dimethylformamide (DMF, 20 mL) was added DBU (254 mg, 1.67 mmol, 0.05 equiv) drop wise to keep the reaction temperature between 15-25° C. After adding DBU, the reaction mixture became homogeneous within 90 min. The reaction mixture was stirred for 3 h at room temperature. When HPLC showed that the reaction was deemed complete, the reaction mixture was quenched with water (120 mL) and acetonitrile (80 mL). The resulting mixture was stirred at room temperature for an additional 30 min. The solids were collected by filtration, washed with a mixture of acetonitrile and water (2/3 by volume, 2×20 mL), and dried in vacuum oven at 40-45° C. for 24 h to afford crude (4-(1-(3-(cyanomethyl)-1-(ethylsulfonyl)azetidin-3-yl)-1H-pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl pivalate (20, 14.5 g, 16.2 g theoretical, 89.5% yield) as white solids, which was found to be sufficiently pure (>98.0% by HPLC) for the subsequent reaction without further purification. For 20: 1HNMR (CDCl3, 300 MHz), δ 8.87 (s, 1H), 8.43 (s, 1H), 8.37 (s, 1H), 7.51 (d, 1H, J=3.6 Hz), 6.76 (d, 1H, J=3.6 Hz), 6.26 (s, 2H), 4.64 (d, 2H, J=9.6 Hz), 4.25 (d, 2H, J=9.6 Hz), 3.41 (s, 2H), 3.09 (q, 2H, J=7.6 Hz), 1.42 (t, 3H, J=7.6 Hz), 1.17 (s, 9H) ppm; C22H27N7O4S (MW, 485.56), LCMS (EI) m/e 486 (M++H).

後処理

  1. custombetween 15-25° C
  2. customthe reaction mixture was quenched with water (120 mL) and acetonitrile (80 mL)
  3. stirringThe resulting mixture was stirred at room temperature for an additional 30 min
  4. filtrationThe solids were collected by filtration
  5. washwashed with a mixture of acetonitrile and water (2/3 by volume, 2×20 mL)
  6. customdried in vacuum oven at 40-45° C. for 24 h

出典と根拠

ORDレコード
ord-a5fa933f03e74f0c90d17335c88ab51b
出典データセット
uspto-grants-2012_04
特許番号
US08158616B2

反応ノート

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