Sodium Carbonate → (R)-4-((R)-1-((1-cyclopropyl-5-(pyrimidin-4-yl)-1H-benzo[d]imidazol-7-yl)oxy)ethyl)pyrrolidin-2-one

HRID 2209112ノート

反応式

HRID 2209112 の反応式
[CH:1]1([N:4]2[C:8]3[C:9]([O:22][C@@H:23]([C@H:25]4[CH2:29][NH:28][C:27](=[O:30])[CH2:26]4)[CH3:24])=[CH:10][C:11](B4OC(C)(C)C(C)(C)O4)=[CH:12][C:7]=3[N:6]=[CH:5]2)[CH2:3][CH2:2]1.Br[C:32]1[CH:37]=[CH:36][N:35]=[CH:34][N:33]=1.C(=O)([O-])[O-].[Na+].[Na+].O1CCOCC1>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O>[CH:1]1([N:4]2[C:8]3[C:9]([O:22][C@@H:23]([C@H:25]4[CH2:29][NH:28][C:27](=[O:30])[CH2:26]4)[CH3:24])=[CH:10][C:11]([C:32]4[CH:37]=[CH:36][N:35]=[CH:34][N:33]=4)=[CH:12][C:7]=3[N:6]=[CH:5]2)[CH2:3][CH2:2]1

参加物

7

反応物 4

HCID 10340Sodium CarbonateHCID 312751,4-DioxaneHCID 127522204-BromopyrimidineHCID 123319683(R)-4-((R)-1-((1-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzo[d]imidazol-7-yl)oxy)ethyl)pyrrolidin-2-one

生成物 1

HCID 117842793(R)-4-((R)-1-((1-cyclopropyl-5-(pyrimidin-4-yl)-1H-benzo[d]imidazol-7-yl)oxy)ethyl)pyrrolidin-2-one収率 50.9%

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒

反応条件

温度
120 °C

実験手順

Into an appropriate sized reaction vessel, a mixture of (R)-4-((R)-1-((1-cyclopropyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzo[d]imidazol-7-yl)oxy)ethyl)pyrrolidin-2-one: (100.0 mg, 0.24 mmol), 4-bromopyrimidine (77.3 mg, 0.49 mmol), sodium carbonate (77.3 mg, 0.73 mmol) and Pd(PPh3)4 (14.04 mg, 0.01 mmol) was added Dioxane (8 ml), water (1 ml). The reaction mixture was stirred and heated at 120° C. for 3 h. Then, it was filtered through a pad of Celite and partitioned between EtOAc (2×30 mL) and brine (2×10 mL). The combined organic layers were washed with water (2×5 mL), concentrated, and purified by flash chromatography (100% EtOAc to 20% MeOH in EtOAc) to give 45.0 mg (50.9%) of (R)-4-((R)-1-((1-cyclopropyl-5-(pyrimidin-4-yl)-1H-benzo[d]imidazol-7-yl)oxy)ethyl)pyrrolidin-2-one:. 1H NMR (300 MHz, DMSO-d6) δ 9.211 (d, J=1.2 Hz, 1H), 8.80 (d, J=5.1 Hz, 1H), 8.19 (dd, J=2.4, 0.9 Hz, 2H), 8.11 (s, 1H), 7.719 (s, 1H). 7.603 (s, 1H), 4.91-4.83 (m, 1H), 3.77-3.70 (m, 1H), 3.41 (t, J=9.2 Hz, 1H), 3.21 (dd, J=6.6, 6.9 Hz, 1H), 2.87-2.82 (m, 1H), 2.41-2.24 (m, 2H), 1.34 (d, J=6 Hz, 3H), 1.20-1.01 (m, 4H). LCMS-ESI+ (m/z): [M+H]+ calcd for C20H21N5O2: 363.17; found 364.04.

後処理

  1. filtrationThen, it was filtered through a pad of Celite
  2. custompartitioned between EtOAc (2×30 mL) and brine (2×10 mL)
  3. washThe combined organic layers were washed with water (2×5 mL)
  4. concentrationconcentrated
  5. custompurified by flash chromatography (100% EtOAc to 20% MeOH in EtOAc)

出典と根拠

ORDレコード
ord-3115390e683046348e1928771d3d8c27
出典データセット
uspto-grants-2016_06
特許番号
US09376441B2

反応ノート

読み込み中…