Hydrochloric Acid → HCID 66719570, compound

HRID 2390452Notes

Reaction equation

HRID 2390452 reaction equation
[O:1]1[CH2:3][C@H:2]1[CH2:4][N:5]1[C:13]2[C:8](=[CH:9][C:10]([N:14]3[CH:19]=[CH:18][C:17]([C:20]4[CH:25]=[CH:24][C:23]([C:26]([F:29])([F:28])[F:27])=[CH:22][CH:21]=4)=[CH:16][C:15]3=[O:30])=[CH:11][CH:12]=2)[CH:7]=[N:6]1.[CH3:31][NH:32][CH3:33].[ClH:34]>O1CCCC1.ClCCl>[ClH:34].[CH3:31][N:32]([CH3:33])[CH2:3][C@H:2]([OH:1])[CH2:4][N:5]1[C:13]2[C:8](=[CH:9][C:10]([N:14]3[CH:19]=[CH:18][C:17]([C:20]4[CH:25]=[CH:24][C:23]([C:26]([F:27])([F:29])[F:28])=[CH:22][CH:21]=4)=[CH:16][C:15]3=[O:30])=[CH:11][CH:12]=2)[CH:7]=[N:6]1

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 674DimethylamineHCID 57625502HCID 57625502, compound

Product 1

HCID 66719570HCID 66719570, compoundYield 71%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolvent2×HCID 8028TetrahydrofuranSolvent2×

Conditions

Temperature
45 °C

Procedure

To (R)-1-(1-(oxiran-2-ylmethyl)-1H-indazol-5-yl)-4-(4-(trifluoromethyl)-phenyl)pyridin-2(1H)-one (230 mg, 0.56 mmol) in tetrahydrofuran (5 mL) was added LiClO4 (892 mg, 8.38 mmol) followed by dimethylamine (2.8 ml of a 2 M solution in tetrahydrofuran, 5.6 mmol). The reaction mixture was heated in a 45° C. oil bath for 3.75 h. The reaction mixture was cooled to ambient temperature, diluted with dichloromethane (50 ml), washed with water (25 mL) and brine (25 mL), dried (Na2SO4), and concentrated under reduced pressure. The material was purified by column chromatography (silica gel, 9:1 CH2Cl2/MeOH to 90:9:1 CH2Cl2/MeOH/conc. NH4OH). The dried residue (198 mg, 0.43 mmol) was dissolved in dichloromethane (2 mL), and HCl (1.25 M solution in methanol, 0.38 mL, 0.47 mmol) was added. The mixture was concentrated under reduced pressure and dried to afford the title compound (198 mg, 71%) as a yellow solid: 1H NMR (500 MHz, DMSO-d6) δ 9.42 (br s, 1H), 8.20 (s, 1H), 8.02-8.00 (m, 2H), 7.88-7.80 (m, 5H), 7.46 (dd, J=8.5, 1.5 Hz, 1H), 6.89 (d, J=2.0 Hz, 1H), 6.74 (dd, J=7.0, 2.0 Hz, 1H), 5.60 (br s, 1H), 4.56-4.52 (m, 1H), 4.48-4.44 (m, 1H), 4.27 (br s, 1H), 2.92-2.88 (br m, 2H), 2.58 (br s, 6H); ESI MS m/z 457 [M+H]+; HPLC (Method B)>99% (AUC), tR=14.5 min; [α]23D −9.5° (c 0.14, Methanol).

Workup

  1. temperatureThe reaction mixture was cooled to ambient temperature
  2. washwashed with water (25 mL) and brine (25 mL)
  3. dry with materialdried (Na2SO4)
  4. concentrationconcentrated under reduced pressure
  5. customThe material was purified by column chromatography (silica gel, 9:1 CH2Cl2/MeOH to 90:9:1 CH2Cl2/MeOH/conc. NH4OH)
  6. concentrationThe mixture was concentrated under reduced pressure
  7. customdried

Sources & evidence

ORD record
ord-3dca9c12f6bc4552a7fd3dadd4db423d
Source dataset
uspto-grants-2012_09
Patent number
US08273770B2

Reaction notes

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