Triethylamine → 2-(1,3-benzoxazol-2-yl)-1-[1-(4-fluorophenyl)-6,7-dihydro-5H-pyrazolo[4,3-b]pyridin-4-yl]ethanone

HRID 710661ノート

反応式

HRID 710661 の反応式
[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:16]3[CH2:15][CH2:14][CH2:13][NH:12][C:11]=3[CH:10]=[N:9]2)=[CH:4][CH:3]=1.[O:17]1[C:21]2[CH:22]=[CH:23][CH:24]=[CH:25][C:20]=2[N:19]=[C:18]1[CH2:26][C:27](O)=[O:28].CCN(CC)CC.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>CN(C=O)C>[O:17]1[C:21]2[CH:22]=[CH:23][CH:24]=[CH:25][C:20]=2[N:19]=[C:18]1[CH2:26][C:27]([N:12]1[CH2:13][CH2:14][CH2:15][C:16]2[N:8]([C:5]3[CH:4]=[CH:3][C:2]([F:1])=[CH:7][CH:6]=3)[N:9]=[CH:10][C:11]1=2)=[O:28]

参加物

6

反応物 4

HCID 8471TriethylamineHCID 954457(1,3-Benzoxazol-2-yl)acetic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 679846101-(4-fluorophenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-b]pyridine

生成物 1

HCID 733359152-(1,3-benzoxazol-2-yl)-1-[1-(4-fluorophenyl)-6,7-dihydro-5H-pyrazolo[4,3-b]pyridin-4-yl]ethanone収率 53.1%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

To a mixture of 1-(4-fluorophenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-b]pyridine (0.023 g, 0.11 mmol), benzooxazol-2-yl-acetic acid (0.023 g, 0.13 mmol) and NEt3 (0.060 mL, 0.43 mmol) in DMF (0.6 mL) was added HATU (0.050 g, 0.13 mmol). The mixture was stirred at rt for 30 min. It was then quenched with water. The mixture was partitioned between IPA/CHCl3 (1:2, 50 mL) and sat. NaHCO3 (30 mL). The organic layer was separated, dried over Na2SO4, concentrated in vacuo, and purified by reverse phase HPLC to afford the desired product (0.022 g, 53%). 1H NMR (400 MHz, CDCl3) δ 8.46 (s, 1H), 7.71 (m, 1H), 7.53 (m, 1H), 7.45 (dd, J=8.8, 4.8 Hz, 2H), 7.34 (m, 2H), 7.15 (dd, J=8.8, 8.4 Hz, 2H), 4.25 (s, 2H), 3.88 (m, 2H), 2.83 (t, J=6.4 Hz, 2H), 2.08 (m, 2H); MS: (ES) m/z calculated for C21H17FN4O2 [M+H]+ 377.1, found 377.1.

後処理

  1. customIt was then quenched with water
  2. customThe mixture was partitioned between IPA/CHCl3 (1:2, 50 mL) and sat. NaHCO3 (30 mL)
  3. customThe organic layer was separated
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuo
  6. custompurified by reverse phase HPLC

出典と根拠

ORDレコード
ord-5975cbeb474b48f9b10c570d321afd97
出典データセット
uspto-grants-2015_11
特許番号
US09181241B2

反応ノート

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