Carbonic acid sodium salt (1:2) → 2-(4-Quinazolin-8-ylphenyl)-n-{(1r)-1-[5-(2,2,2-trifluoroethoxy)pyridin-2-yl]ethyl}acetamide

HRID 474147

反应方程式

HRID 474147 反应方程式
[F:1][C:2]([F:18])([F:17])[CH2:3][O:4][C:5]1[CH:6]=[CH:7][C:8]([C@H:11]([NH:13][C:14](=[O:16])[CH3:15])[CH3:12])=[N:9][CH:10]=1.Br[C:20]1[CH:21]=[CH:22][CH:23]=[C:24]2[C:29]=1[N:28]=[CH:27][N:26]=[CH:25]2.C(=O)([O-])[O-].[Na+].[Na+]>C(#N)C.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[N:28]1[C:29]2[C:24](=[CH:23][CH:22]=[CH:21][C:20]=2[C:20]2[CH:21]=[CH:22][C:23]([CH2:15][C:14]([NH:13][C@@H:11]([C:8]3[CH:7]=[CH:6][C:5]([O:4][CH2:3][C:2]([F:1])([F:17])[F:18])=[CH:10][N:9]=3)[CH3:12])=[O:16])=[CH:24][CH:29]=2)[CH:25]=[N:26][CH:27]=1

参与物

6

反应物 3

HCID 10340Carbonic acid sodium salt (1:2)HCID 183178148-溴喹唑啉HCID 123785221N-{(1R)-1-[5-(2,2,2-trifluoroethoxy)pyridin-2-yl]ethyl}acetamide

产物 1

HCID 426099612-(4-Quinazolin-8-ylphenyl)-n-{(1r)-1-[5-(2,2,2-trifluoroethoxy)pyridin-2-yl]ethyl}acetamide收率 75%

试剂、催化剂与溶剂 2

HCID 178418476HCID 178418476，化合物催化剂HCID 6342乙腈溶剂

反应条件

温度
150 °C

实验过程

To a suspension of (R)-1-[5-(2,2,2-trifluoroethoxy)pyridin-2-yl]ethylamine bis-HCl (0.75 g, 2.6 mmol), 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenylacetic acid (0.67 g, 2.6 mmol), EDC (0.59 g, 3.1 mmol), and 1-hydroxy-7-azabenzotriazole (0.42 g, 3.1 mmol) in DMF (5 mL) was added diisopropylethylamine (1.8 mL, 10.2 mmol). After stirring for 90 min at room temperature, the reaction mixture was loaded directly onto a silica gel column and purified by normal phase chromatography (20-80% EtOAc/hexanes) to give 2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)]-N-{(1R)-1-[5-(2,2,2-trifluoroethoxy)pyridin-2-yl]ethyl}acetamide (0.77 g, 65%) as a viscous oil that slowly solidified to a white solid. MS (Electrospray): m/z 465.1 (M+H). To a microwave vial containing 2-[4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)]-N-{(1R)-1-[5-(2,2,2-trifluoroethoxy)pyridin-2-yl]ethyl}acetamide (50 mg, 0.11 mmol), 8-bromoquinazoline (25 mg, 0.12 mmol), and bis(triphenylphosphine)palladium(II) chloride (10 mg, 0.01 mmol) in acetonitrile (1 mL) was added aqueous 1M sodium carbonate (1 mL, 1.0 mmol) and the mixture was heated in a microwave at 150° C. for 10 min. The top organic layer was removed, loaded onto a silica gel column and purified by normal phase chromatography (30-100% EtOAc/hexanes) to give 2-(4-quinazolin-8-ylphenyl)-N-{(1R)-1-[5-(2,2,2-trifluoroethoxy)pyridin-2-yl]ethyl}acetamide (21 mg, 38%) as a white solid. 1H NMR (400 MHz, CDCl3) δ 9.46 (s, 1H), 9.37 (s, 1H), 8.25 (d, J=2.4 Hz, 1H), 7.96 (m, 2H), 7.75 (m, 1H), 7.69 (d, J=8.2 Hz, 2H), 7.44 (d, J=8.2 Hz, 2H), 7.22 (m, 2H), 6.79 (d, J=7.2 Hz, 1H), 5.16 (m, 1H), 4.37 (q, J=8.0 Hz, 2H), 3.68 (s, 2H), 1.44 (d, J=6.8 Hz, 3H); MS (Electrospray): m/z 467.1 (M+H). FLIPR alpha1I IP=19 nM.

后处理

  1. customThe top organic layer was removed
  2. custompurified by normal phase chromatography (30-100% EtOAc/hexanes)

来源与证据

ORD记录
ord-1aa7b41374224d2d9f72e230733a669f
来源数据集
uspto-grants-2014_01
专利号
US08637513B2

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