Potassium Phosphate, Tribasic → HCID 86701076、化合物

HRID 334506ノート

反応式

HRID 334506 の反応式
Br[C:2]1[CH:3]=[C:4]2[C:10]([CH:11]=[O:12])=[N:9][N:8]([CH:13]3[CH2:18][CH2:17][CH2:16][CH2:15][O:14]3)[C:5]2=[N:6][CH:7]=1.[O-]P([O-])([O-])=O.[K+].[K+].[K+].[N:27]1[CH:32]=[CH:31][CH:30]=[C:29](B(O)O)[CH:28]=1>CN(C=O)C.O.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>[N:27]1[CH:32]=[CH:31][CH:30]=[C:29]([C:2]2[CH:3]=[C:4]3[C:10]([CH:11]=[O:12])=[N:9][N:8]([CH:13]4[CH2:18][CH2:17][CH2:16][CH2:15][O:14]4)[C:5]3=[N:6][CH:7]=2)[CH:28]=1

参加物

7

反応物 3

HCID 62657Potassium Phosphate, TribasicHCID 27343783-Pyridinylboronic acidHCID 583775865-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-3-carbaldehyde

生成物 1

HCID 86701076HCID 86701076、化合物

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

反応条件

温度
90 °C

実験手順

To a heterogeneous solution of 5-bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-3-carbaldehyde (III) (328 mg, 1.05 mmol) and K3PO4 (334 mg, 1.57 mmol) in DMF (10 mL) and water (2 mL) was added pyridin-3-ylboronic acid (143 mg, 1.16 mmol). The solution was purged with argon by using argon/vacuum cycle (3×). Pd(PPh3)4 (36 mg, 0.03 mmol) was added to the solution and again purged with argon. The solution was heated at 90° C. for 4 h under argon. The DMF was removed under vacuum. The residue was partitioned between EtOAc and water. The organic layer was separated and the aqueous layer was extracted with EtOAc. The combined EtOAc was dried over MgSO4, filtered and concentrated under reduced pressure. The crude product was purified through a silica gel column (10:90 EtOAc:hexane→50:50 EtOAc:hexane) to produce 5-(pyridin-3-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-3-carbaldehyde (CXXXI) as an off-white waxy solid (283 mg, 0.92 mmol, 91% yield). 1H NMR (DMSO-d6) δ ppm 1.57-1.68 (m, 3H), 1.75-1.89 (m, 1H), 2.01-2.13 (m, 2H), 2.49-2.56 (m, 1H), 3.78 (dt, J=11 Hz, J=4 Hz, 1H), 3.94-4.03 (m, 1H), 6.25 (dd, J=10 Hz, J=2 Hz, 1H), 7.58-7.64 (m, 1H), 8.25 (td, J=8 Hz, J=2 Hz, 1H), 8.66 (dd, J=5 Hz, J=2 Hz, 1H), 8.77 (d, J=2 Hz, 1H), 9.02 (d, J=2 Hz, 1H), 9.09 (d, J=2 Hz, 1H), 10.21 (s, 1H); ESIMS found for C17H16N4O2 m/z 309.4 (M+H).

後処理

  1. customThe solution was purged with argon
  2. customagain purged with argon
  3. customThe DMF was removed under vacuum
  4. customThe residue was partitioned between EtOAc and water
  5. customThe organic layer was separated
  6. extractionthe aqueous layer was extracted with EtOAc
  7. dry with materialThe combined EtOAc was dried over MgSO4
  8. filtrationfiltered
  9. concentrationconcentrated under reduced pressure
  10. customThe crude product was purified through a silica gel column (10:90 EtOAc:hexane→50:50 EtOAc:hexane)

出典と根拠

ORDレコード
ord-66f1dac7e3cc40cab8e1e1c9af957270
出典データセット
uspto-grants-2014_11
特許番号
US08883822B2

反応ノート

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