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

HRID 710660Notes

Reaction equation

HRID 710660 reaction equation
[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.[F:17][C:18]([F:33])([F:32])[C:19]1[C:27]2[CH2:26][CH2:25][CH2:24][CH2:23][C:22]=2[N:21]([CH2:28][C:29](O)=[O:30])[N:20]=1.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>[F:1][C:2]1[CH:3]=[CH:4][C:5]([N:8]2[C:16]3[CH2:15][CH2:14][CH2:13][N:12]([C:29](=[O:30])[CH2:28][N:21]4[C:22]5[CH2:23][CH2:24][CH2:25][CH2:26][C:27]=5[C:19]([C:18]([F:32])([F:17])[F:33])=[N:20]4)[C:11]=3[CH:10]=[N:9]2)=[CH:6][CH:7]=1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 788039[3-(trifluoromethyl)-4,5,6,7-tetrahydro-1H-indazol-1-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

Product 1

HCID 733359141-[1-(4-fluorophenyl)-6,7-dihydro-5H-pyrazolo[4,3-b]pyridin-4-yl]-2-[3-(trifluoromethyl)-4,5,6,7-tetrahydroindazol-1-yl]ethanoneYield 55%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a mixture of 1-(4-fluorophenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-b]pyridine (0.023 g, 0.11 mmol), 2-[3-(trifluoromethyl)-4,5,6,7-tetrahydroindazol-1-yl]acetic acid (0.027 g, 0.11 mmol) and NEt3 (0.050 mL, 0.36 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 (0.027 g, 55%). 1H NMR (400 MHz, CDCl3) δ 8.43 (s, 1H), 7.42 (dd, J=8.8, 4.4 Hz, 2H), 7.17 (dd, J=9.2, 8.0 Hz, 2H), 5.15 (s, 2H), 3.87 (m, 2H), 2.82 (t, J=6.2 Hz, 2H), 2.61 (m, 4H), 2.11 (m, 2H), 1.87 (m, 2H), 1.79 (m, 2H); MS: (ES) m/z calculated for C22H21F4N5O [M+H]+ 448.1, found 448.1.

Workup

  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

Sources & evidence

ORD record
ord-d5d0ee03e37846f6a45c80a4d0314faf
Source dataset
uspto-grants-2015_11
Patent number
US09181241B2

Reaction notes

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