Diisopropylethylamine → 5-chloro-N-[4-(3-dimethylaminoazetidin-1-yl)-2-methoxy-5-nitrophenyl]-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-amine

HRID 1842692ノート

反応式

HRID 1842692 の反応式
CCN(C(C)C)C(C)C.[Cl:10][C:11]1[C:12]([C:30]2[CH:31]=[N:32][N:33]3[CH:38]=[CH:37][CH:36]=[CH:35][C:34]=23)=[N:13][C:14]([NH:17][C:18]2[CH:23]=[C:22]([N+:24]([O-:26])=[O:25])[C:21](F)=[CH:20][C:19]=2[O:28][CH3:29])=[N:15][CH:16]=1.Cl.Cl.[CH3:41][N:42]([CH3:47])[CH:43]1[CH2:46][NH:45][CH2:44]1.CN(C)C1CNC1>CC(N(C)C)=O>[Cl:10][C:11]1[C:12]([C:30]2[CH:31]=[N:32][N:33]3[CH:38]=[CH:37][CH:36]=[CH:35][C:34]=23)=[N:13][C:14]([NH:17][C:18]2[CH:23]=[C:22]([N+:24]([O-:26])=[O:25])[C:21]([N:45]3[CH2:46][CH:43]([N:42]([CH3:47])[CH3:41])[CH2:44]3)=[CH:20][C:19]=2[O:28][CH3:29])=[N:15][CH:16]=1

参加物

6

反応物 4

HCID 81531DiisopropylethylamineHCID 10351656N,N-dimethylazetidin-3-amineHCID 22121220N,N-Dimethylazetidin-3-amine--hydrogen chloride (1/2)2 回HCID 712393485-chloro-N-(4-fluoro-2-methoxy-5-nitrophenyl)-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-amine2 回

生成物 1

HCID 712407235-chloro-N-[4-(3-dimethylaminoazetidin-1-yl)-2-methoxy-5-nitrophenyl]-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-amine収率 102.7%

試薬・触媒・溶媒 1

HCID 31374Dimethylacetamide溶媒

反応条件

温度
100 °C

実験手順

DIPEA (0.341 mL, 1.96 mmol) was added to a mixture of 5-chloro-N-(4-fluoro-2-methoxy-5-nitrophenyl)-4-(pyrazolo[1,5-a]pyridin-3-yl)pyrimidin-2-amine (Intermediate 20, 254 mg, 0.61 mmol) and N,N-dimethylazetidin-3-amine dihydrochloride (Intermediate 26, 106 mg, 0.61 mmol) in DMA (4 mL) and the mixture was heated to 100° C. for 0.5 h. Further N,N-dimethylazetidin-3-amine (35 mg, 0.19 mmol) was then added and the mixture was heated at 100° C. for a further 2 h and was then left at r.t. overnight. The mixture was purified directly by ion exchange chromatography, using an SCX column. The desired product was eluted from the column using 7M methanolic ammonia and was concentrated in vacuo onto silica. Purification by FCC, eluting with 0-4% 7N methanolic ammonia in CH2Cl2 gave the title compound (310 mg, 102%) as an orange solid, which was used without further purification; 1H NMR: 2.14 (6H, s), 3.08-3.18 (1H, m), 3.76 (2H, dd), 3.89 (3H, s), 4.02-4.11 (2H, m), 6.28 (1H, s), 7.12 (1H, td), 7.30-7.39 (1H, m), 8.12 (1H, s), 8.37 (1H, br s), 8.42 (1H, s), 8.68 (1H, s), 8.83 (1H, d), 8.94 (1H, d); m/z: ES+ MH+ 495.56.

後処理

  1. temperaturethe mixture was heated at 100° C. for a further 2 h
  2. customThe mixture was purified directly by ion exchange chromatography
  3. washThe desired product was eluted from the column
  4. concentrationwas concentrated in vacuo onto silica
  5. customPurification by FCC
  6. washeluting with 0-4% 7N methanolic ammonia in CH2Cl2

出典と根拠

ORDレコード
ord-20cd47f792db44a6a7f0e1923b52dd8d
出典データセット
uspto-grants-2015_02
特許番号
US08946235B2

反応ノート

読み込み中…