Aminopyrazine → 4-[2-(difluoromethyl)-1H-benzimidazol-1-yl]-6-(4-morpholinyl)-N-(2-pyrazinyl)-1,3,5-triazin-2-amine

HRID 450158

反応式

HRID 450158 の反応式
[NH2:1][C:2]1[CH:7]=[N:6][CH:5]=[CH:4][N:3]=1.C[Si]([N-][Si](C)(C)C)(C)C.[Na+].Cl[C:19]1[N:24]=[C:23]([N:25]2[CH2:30][CH2:29][O:28][CH2:27][CH2:26]2)[N:22]=[C:21]([N:31]2[C:35]3[CH:36]=[CH:37][CH:38]=[CH:39][C:34]=3[N:33]=[C:32]2[CH:40]([F:42])[F:41])[N:20]=1>C1COCC1.C(O)(=O)C.O>[F:42][CH:40]([F:41])[C:32]1[N:31]([C:21]2[N:22]=[C:23]([N:25]3[CH2:26][CH2:27][O:28][CH2:29][CH2:30]3)[N:24]=[C:19]([NH:1][C:2]3[CH:7]=[N:6][CH:5]=[CH:4][N:3]=3)[N:20]=2)[C:35]2[CH:36]=[CH:37][CH:38]=[CH:39][C:34]=2[N:33]=1

参加物

7

反応物 3

HCID 78747AminopyrazineHCID 2724254Sodium bis(trimethylsilyl)amideHCID 220368724-(4-chloro-6-(2-(difluoromethyl)-1H-benzo[d]imidazol-1-yl)-1,3,5-triazin-2-yl)morpholine

生成物 1

HCID 581027874-[2-(difluoromethyl)-1H-benzimidazol-1-yl]-6-(4-morpholinyl)-N-(2-pyrazinyl)-1,3,5-triazin-2-amine収率 61.5%

試薬・触媒・溶媒 3

HCID 176Acetic Acid溶媒HCID 962Water溶媒HCID 8028Tetrahydrofuran溶媒2 回

実験手順

To a solution of 0.219 g (2.30 mmol) of aminopyrazine in THF (5 mL) at 0° C. was added 1.3 mL of NaHMDS (2 M solution in THF), and the mixture was stirred for 15 min. A solution of 0.238 g (0.65 mmol) of 1-[4-chloro-6-(4-morpholinyl)-1,3,5-triazin-2-yl]-2-(difluoromethyl)-1H-benzimidazole in THF (6 mL) was added, and the resulting mixture was stirred for 1 hr at RT. After neutralization with acetic acid, the mixture was diluted with water and extracted with EtOAc. The organic layer was washed sequentially with water and aq. NH3, dried and concentrated. Chromatography on alumina, eluting first with hexanes/EtOAc (1:1) and then with CH2Cl2/EtOAc (1:4) to CH2Cl2/EtOAc (1:1) gave a white powder. Recrystallization from ethanol/CH2Cl2 gave 0.170 g (54% yield) of 4-[2-(difluoromethyl)-1H-benzimidazol-1-yl]-6-(4-morpholinyl)-N-(2-pyrazinyl)-1,3,5-triazin-2-amine: mp 271-274° C.; 1H NMR (CDCl3) δ9.59 (s, 1H), 8.42-8.33 (m, 3H), 7.92 (d, J=7.4 Hz, 1H), 7.81 (s, 1H), 7.60 (t, JHF=53.5 Hz, 1H), 7.48-7.41 (m, 2H), 3.98 (d, J=4.2 Hz, 4H), 3.85 (d, J=4.2 Hz, 4H); Anal. Calcd. for C19H17F2N9O: C, 53.65; H, 4.1; N, 29.6. Found: C, 53.9; H, 3.8; N, 29.7%.

後処理

  1. stirringthe resulting mixture was stirred for 1 hr at RT
  2. extractionextracted with EtOAc
  3. washThe organic layer was washed sequentially with water and aq. NH3
  4. customdried
  5. concentrationconcentrated
  6. washChromatography on alumina, eluting first with hexanes/EtOAc (1:1)
  7. customwith CH2Cl2/EtOAc (1:4) to CH2Cl2/EtOAc (1:1) gave a white powder
  8. customRecrystallization from ethanol/CH2Cl2

出典と根拠

ORDレコード
ord-05e5811baa754bd59ab42d296d37a12f
出典データセット
uspto-grants-2013_07
特許番号
US08486939B2

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