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

HRID 2275039Notes

Reaction equation

HRID 2275039 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:38]=[CH:37][C:19]3[N:20]([CH3:36])[C:21]([C:23]4[N:31]([CH2:32][CH:33]5[CH2:35][CH2:34]5)[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.C(O)C>[NH2:7][C@@H:8]1[CH2:13][CH2:12][CH2:11][N:10]([C:14]([C:16]2[CH:38]=[CH:37][C:19]3[N:20]([CH3:36])[C:21]([C:23]4[N:31]([CH2:32][CH:33]5[CH2:34][CH2:35]5)[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

6

Reactant 2

HCID 6422Trifluoroacetic acidHCID 118178623(R)-tert-Butyl(1-(2-(1-(cyclopropylmethyl)-1H-pyrrolo[2,3-b]pyridin-2-yl)-1-methyl-1H-benzo[d]imidazole-5-carbonyl)piperidin-3-yl)carbamate

Product 1

HCID 72725333(R)-(3-Aminopiperidin-1-yl)(2-(1-(cyclopropylmethyl)-1H-pyrrolo[2,3-b]pyridin-2-yl)-1-methyl-1H-benzo[d]imidazol-5-yl)methanoneYield 94.6%

Reagents, catalysts & solvents 3

HCID 702EthanolSolventHCID 887MethanolSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of (R)-tert-butyl(1-(2-(1-(cyclopropylmethyl)-1H-pyrrolo[2,3-b]pyridin-2-yl)-1-methyl-1H-benzo[d]imidazole-5-carbonyl)piperidin-3-yl)carbamate (3.402 g, 6.44 mmol) in dichloromethane (DCM) (40 ml) was added TFA (9 ml, 118 mmol) dropwise. The reaction mixture was stirred for 3 hours. The reaction mixture was concentrated under vacuum to afford a yellow oil. The oil was dissolved in methanol and loaded onto a 70 g SCX cartridge. The column was washed with MeOH (2CV) and the product collected as the free base with 2M ammonia in methanol (3CV). The product was concentrated in vacuo and dried under vacuum to afford a yellow solid. This was dissolved in hot ethanol and concentrated in vacuo. It was again dissolved in hot ethanol, concentrated in vacuo and dried under vacuum to yield the title compound as a yellow solid (2.61 g).

Workup

  1. concentrationThe reaction mixture was concentrated under vacuum
  2. customto afford a yellow oil
  3. washThe column was washed with MeOH (2CV)
  4. customthe product collected as the free base with 2M ammonia in methanol (3CV)
  5. concentrationThe product was concentrated in vacuo
  6. customdried under vacuum
  7. customto afford a yellow solid
  8. concentrationconcentrated in vacuo
  9. dissolutionIt was again dissolved in hot ethanol
  10. concentrationconcentrated in vacuo
  11. customdried under vacuum

Sources & evidence

ORD record
ord-8544f6f1c6a945728160a5b5460d3345
Source dataset
uspto-grants-2015_09
Patent number
US09127003B2

Reaction notes

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