Trifluoroacetic acid → (S)-4-(aminomethyl)-N-(1-(4-chlorophenyl)ethyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamide

HRID 422980Notes

Reaction equation

HRID 422980 reaction equation
FC(F)(F)C(O)=O.[Cl:8][C:9]1[CH:14]=[CH:13][C:12]([C@@H:15]([NH:17][C:18]([C:20]2([CH2:35][NH:36]C(=O)OC(C)(C)C)[CH2:25][CH2:24][N:23]([C:26]3[C:27]4[CH:34]=[CH:33][NH:32][C:28]=4[N:29]=[CH:30][N:31]=3)[CH2:22][CH2:21]2)=[O:19])[CH3:16])=[CH:11][CH:10]=1>C(Cl)Cl>[NH2:36][CH2:35][C:20]1([C:18]([NH:17][C@H:15]([C:12]2[CH:11]=[CH:10][C:9]([Cl:8])=[CH:14][CH:13]=2)[CH3:16])=[O:19])[CH2:21][CH2:22][N:23]([C:26]2[C:27]3[CH:34]=[CH:33][NH:32][C:28]=3[N:29]=[CH:30][N:31]=2)[CH2:24][CH2:25]1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 57750334(S)-tert-butyl (4-(1-(4-chlorophenyl)ethylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-yl)methylcarbamate2×

Product 1

HCID 42602174(S)-4-(aminomethyl)-N-(1-(4-chlorophenyl)ethyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamideYield 46%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
25 °C

Procedure

Trifluoroacetic acid (2 mL, 25.96 mmol) was added to (S)-tert-butyl (4-(1-(4-chlorophenyl)ethylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-yl)methylcarbamate (Intermediate 13) (0.257 g, 0.5 mmol) in DCM (20 mL) at 25° C. The resulting solution was stirred at 25° C. for 1 hour. The crude product was purified by ion exchange chromatography, using an SCX column. The desired product was eluted from the column using 7M NH3/MeOH and pure fractions were evaporated to dryness. The crude product was purified by flash silica chromatography, elution gradient 0 to 10% 7N ammonia/MeOH in DCM. Pure fractions were evaporated to dryness to afford (S)-4-(aminomethyl)-N-(1-(4-chlorophenyl)ethyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamide (0.095 g, 46.0%) as a white solid.

Workup

  1. customThe crude product was purified by ion exchange chromatography
  2. washThe desired product was eluted from the column
  3. customwere evaporated to dryness
  4. customThe crude product was purified by flash silica chromatography, elution gradient 0 to 10% 7N ammonia/MeOH in DCM
  5. customPure fractions were evaporated to dryness

Sources & evidence

ORD record
ord-b1c6543b9ab4454fad085f555551f962
Source dataset
uspto-grants-2012_01
Patent number
US08101623B2

Reaction notes

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