Trifluoroacetic acid → (R)-(3-Aminopiperidin-1-yl)(7-methoxy-1-methyl-2-(1-(2,2,2-trifluoroethyl)-1H-pyrrolo[2,3-b]pyridin-2-yl)-1H-benzo[d]imidazol-5-yl)methanone

HRID 2275048Notes

Reaction equation

HRID 2275048 reaction equation
C(OC(=O)[NH:7][C@@H:8]1[CH2:13][CH2:12][CH2:11][N:10]([C:14]([C:16]2[CH:39]=[C:38]([O:40][CH3:41])[C:19]3[N:20]([CH3:37])[C:21]([C:23]4[N:31]([CH2:32][C:33]([F:36])([F:35])[F:34])[C:26]5=[N:27][CH:28]=[CH:29][CH:30]=[C:25]5[CH:24]=4)=[N:22][C:18]=3[CH:17]=2)=[O:15])[CH2:9]1)(C)(C)C.C(O)(C(F)(F)F)=O>ClCCl.CO>[NH2:7][C@@H:8]1[CH2:13][CH2:12][CH2:11][N:10]([C:14]([C:16]2[CH:39]=[C:38]([O:40][CH3:41])[C:19]3[N:20]([CH3:37])[C:21]([C:23]4[N:31]([CH2:32][C:33]([F:36])([F:35])[F:34])[C:26]5=[N:27][CH:28]=[CH:29][CH:30]=[C:25]5[CH:24]=4)=[N:22][C:18]=3[CH:17]=2)=[O:15])[CH2:9]1

Participants

5

Reactant 2

HCID 6422Trifluoroacetic acidHCID 118178624(R)-tert-Butyl(1-(7-methoxy-1-methyl-2-(1-(2,2,2-trifluoroethyl)-1H-pyrrolo[2,3-b]pyridin-2-yl)-1H-benzo[d]imidazole-5-carbonyl)piperidin-3-yl)carbamate

Product 1

HCID 73052940(R)-(3-Aminopiperidin-1-yl)(7-methoxy-1-methyl-2-(1-(2,2,2-trifluoroethyl)-1H-pyrrolo[2,3-b]pyridin-2-yl)-1H-benzo[d]imidazol-5-yl)methanoneYield 70.8%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of (R)-tert-butyl(1-(7-methoxy-1-methyl-2-(1-(2,2,2-trifluoroethyl)-1H-pyrrolo[2,3-b]pyridin-2-yl)-1H-benzo[d]imidazole-5-carbonyl)piperidin-3-yl)carbamate (4.31 g, 7.35 mmol) in dichloromethane (DCM) (20 ml) at 0° C. was added TFA (9 ml, 118 mmol) dropwise. The reaction mixture was stirred for 5 minutes and allowed to warm to room temperature and stirred for 3 hours. The reaction mixture was concentrated under vacuum to afford an oil. The oil was dissolved in methanol and split into two equal batches. These were passed through two separate 70 g SCX cartridges. The columns were washed with MeOH (2CV) and the product collected from both columns as the free base with 2M ammonia in methanol (3CV). The product was concentrated and dried under vacuum to afford the title compound as a white solid (2.53 g).

Workup

  1. stirringstirred for 3 hours
  2. concentrationThe reaction mixture was concentrated under vacuum
  3. customto afford an oil
  4. customsplit into two equal batches
  5. customseparate 70 g SCX cartridges
  6. washThe columns were washed with MeOH (2CV)
  7. customthe product collected from both columns as the free base with 2M ammonia in methanol (3CV)
  8. concentrationThe product was concentrated
  9. customdried under vacuum

Sources & evidence

ORD record
ord-d32cf3de46284624969e37ec13bca0fd
Source dataset
uspto-grants-2015_09
Patent number
US09127003B2

Reaction notes

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