Diisopropylethylamine → N-((1R,2S)-1-(1-(4-chlorophenyl)-1H-indazol-5-yloxy)-1-(3-methoxyphenyl)propan-2-yl)-2,2-difluoropropanamide

HRID 1098918Notes

Reaction equation

HRID 1098918 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:16]3[C:11](=[CH:12][C:13]([O:17][C@H:18]([C:22]4[CH:27]=[CH:26][CH:25]=[C:24]([O:28][CH3:29])[CH:23]=4)[C@@H:19]([NH2:21])[CH3:20])=[CH:14][CH:15]=3)[CH:10]=[N:9]2)=[CH:4][CH:3]=1.[F:30][C:31]([F:36])([CH3:35])[C:32](O)=[O:33].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CN1C(=O)CCC1.O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([N:8]2[C:16]3[C:11](=[CH:12][C:13]([O:17][C@H:18]([C:22]4[CH:27]=[CH:26][CH:25]=[C:24]([O:28][CH3:29])[CH:23]=4)[C@@H:19]([NH:21][C:32](=[O:33])[C:31]([F:36])([F:30])[CH3:35])[CH3:20])=[CH:14][CH:15]=3)[CH:10]=[N:9]2)=[CH:6][CH:7]=1

Participants

7

Reactant 4

HCID 81531Diisopropylethylamine2×HCID 27828252,2-Difluoropropionic acid2×HCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)2×HCID 59339670(1R,2S)-1-(1-(4-chlorophenyl)-1H-indazol-5-yloxy)-1-(3-methoxyphenyl)propan-2-amine

Product 1

HCID 59339651N-((1R,2S)-1-(1-(4-chlorophenyl)-1H-indazol-5-yloxy)-1-(3-methoxyphenyl)propan-2-yl)-2,2-difluoropropanamide

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 13387N-methyl-2-pyrrolidoneSolvent3×

Procedure

(1R,2S)-1-(1-(4-chlorophenyl)-1H-indazol-5-yloxy)-1-(3-methoxyphenyl)propan-2-amine (126a) (256 mg, 0.63 mmol) dissolved in NMP (3.5 mL) was added to a solution of 2,2-difluoropropanoic acid (111 mg, 1.00 mmol), HATU (382 mg, 1.00 mmol) and DIPEA (0.438 mL, 2.51 mmol) in NMP (1.5 mL). The reaction mixture was stirred at r.t. for 2 h. Additional 2,2-difluoropropanoic acid (80 mg, 0.73 mmol), HATU (278 mg, 0.73 mmol) and DIPEA (0.25 mL, 1.4 mmol) in NMP (1.5 mL) was added. The reaction mixture was stirred at r.t. for another h. Water (50 mL) was added, the mixture was extracted with EtOAc (2×50 mL), the organic phase was washed with 10% NaHSO4 (aq), brine, dried over MgSO4, filtered and evaporated to give a crude product that was purified by HPLC. The fractions containing the product was combined and freeze dried. Yield 197 mg (62%).

Workup

  1. stirringThe reaction mixture was stirred at r.t. for another h
  2. extractionthe mixture was extracted with EtOAc (2×50 mL)
  3. washthe organic phase was washed with 10% NaHSO4 (aq), brine
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. customevaporated

Sources & evidence

ORD record
ord-22a0c4f200504ec9b2c4f21f0dd93b22
Source dataset
uspto-grants-2012_03
Patent number
US08143290B2

Reaction notes

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