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

HRID 2275036Notes

Reaction equation

HRID 2275036 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:36]=[CH:35][C:19]3[N:20]([CH3:34])[C:21]([C:23]4[N:31]([CH2:32][CH3:33])[C:26]5=[CH:27][N: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:36]=[CH:35][C:19]3[N:20]([CH3:34])[C:21]([C:23]4[N:31]([CH2:32][CH3:33])[C:26]5=[CH:27][N: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 118178620(R)-tert-Butyl(1-(2-(1-ethyl-1H-pyrrolo[2,3-c]pyridin-2-yl)-1-methyl-1H-benzo[d]imidazole-5-carbonyl)piperidin-3-yl)carbamate

Product 1

HCID 73052772(R)-(3-Aminopiperidin-1-yl)(2-(1-ethyl-1H-pyrrolo[2,3-c]pyridin-2-yl)-1-methyl-1H-benzo[d]imidazol-5-yl)methanoneYield 100.6%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of (R)-tert-butyl(1-(2-(1-ethyl-1H-pyrrolo[2,3-c]pyridin-2-yl)-1-methyl-1H-benzo[d]imidazole-5-carbonyl)piperidin-3-yl)carbamate (42 mg, 0.084 mmol) in dichloromethane (DCM) (1 mL) was added TFA (0.258 mL, 3.34 mmol) and the reaction stirred at room temperature for 2 h. The reaction mixture was concentrated in vacuo to afford a yellow oil. This was dissolved in methanol and loaded onto an SCX cartridge (5 g). It was eluted with methanol (3 column volumes) and product eluted as free base with 2M ammonia in methanol. The filtrate from the ammonia fractions was concentrated in vacuo to yield the title compound as a yellow solid (34 mg).

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. customto afford a yellow oil
  3. washIt was eluted with methanol (3 column volumes) and product
  4. washeluted as free base with 2M ammonia in methanol
  5. concentrationThe filtrate from the ammonia fractions was concentrated in vacuo

Sources & evidence

ORD record
ord-422befbd9d5c4d998b841b7d7b74ed92
Source dataset
uspto-grants-2015_09
Patent number
US09127003B2

Reaction notes

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