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Cesium carbonate → tert-butyl 3-{3-[1-(4-amino-3-methyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-6-cyano-2-methoxy-5-methylphenyl}azetidine-1-carboxylate

HRID 1499913
ノート
印刷プレビュー

反応式

HRID 1499913 の反応式
Cl[CH:2]([C:4]1[C:5]([O:24][CH3:25])=[C:6]([CH:13]2[CH2:16][N:15]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:14]2)[C:7]([C:11]#[N:12])=[C:8]([CH3:10])[CH:9]=1)[CH3:3].C(=O)([O-])[O-].[Cs+].[Cs+].[CH3:32][C:33]1[C:41]2[C:36](=[N:37][CH:38]=[N:39][C:40]=2[NH2:42])[NH:35][N:34]=1>CN(C)C=O.C(OCC)(=O)C>[NH2:42][C:40]1[N:39]=[CH:38][N:37]=[C:36]2[N:35]([CH:2]([C:4]3[C:5]([O:24][CH3:25])=[C:6]([CH:13]4[CH2:16][N:15]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:14]4)[C:7]([C:11]#[N:12])=[C:8]([CH3:10])[CH:9]=3)[CH3:3])[N:34]=[C:33]([CH3:32])[C:41]=12
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 10796Cesium carbonateHCID 86677833Tert-butyl 3-[3-(1-chloroethyl)-6-cyano-2-methoxy-5-methylphenyl]azetidine-1-carboxylateHCID 178434474HCID 178434474、化合物

生成物 1

HCID 86677834tert-butyl 3-{3-[1-(4-amino-3-methyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-6-cyano-2-methoxy-5-methylphenyl}azetidine-1-carboxylate収率 50%

試薬・触媒・溶媒 2

HCID 6228
Dimethylformamide
溶媒
HCID 8857Ethyl Acetate溶媒

反応条件

温度
80 °C

実験手順

The tert-butyl 3-[3-(1-chloroethyl)-6-cyano-2-methoxy-5-methylphenyl]azetidine-1-carboxylate (2.3 g, 6.3 mmol) was dissolved in N,N-dimethylformamide (68 mL) with cesium carbonate (4.1 g, 13 mmol) and 3-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (1.4 g, 9.4 mmol) and was heated in an oil bath to 80° C. The reaction was stirred for 18 hrs and allowed to cool to room temperature. The reaction mixture was taken up in ethyl acetate, filtered, washed with water, brine, dried over magnesium sulfate and concentrated to give the crude product. The product was purified by FCC on silica gel eluting a (hexane: 10% ethanol ethyl acetate) gradient to give tert-butyl 3-{3-[-1-(4-amino-3-methyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-6-cyano-2-methoxy-5-methylphenyl}azetidine-1-carboxylate as a semisolid (1.5 g, 50%). LCMS calculated for C25H32N7O3(M+H)+: m/z=478.2; found: 478.2. The enantiomers were separated by Chiral column HPLC using: Phenomenex LUX Cellulose Column, 21.1×250 mm, 5 micron, 15% ethanol in hexane, 18 mL/min ˜5 mg/injection to give: First peak retention time: 2.1 minutes, tert-butyl 3-{3-[-1-(4-amino-3-methyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-6-cyano-2-methoxy-5-methylphenyl}azetidine-1-carboxylate; Second peak retention time: 3.9 minutes, tert-butyl 3-{3-[-1-(4-amino-3-methyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-6-cyano-2-methoxy-5-methylphenyl}azetidine-1-carboxylate.

後処理

  1. temperatureto cool to room temperature
  2. filtrationfiltered
  3. washwashed with water, brine
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated
  6. customto give the crude product
  7. customThe product was purified by FCC on silica gel eluting a (hexane: 10% ethanol ethyl acetate) gradient

出典と根拠

ORDレコード
ord-7c9c1ce670784c5fbba4540fa0c49a7a
出典データセット
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09199982B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート