Trifluoroacetic acid → HCID 42602347, compound

HRID 423007Notes

Reaction equation

HRID 423007 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C@@H:8]([NH:16][C:17]([C:19]2([NH:34]C(=O)OC(C)(C)C)[CH2:24][CH2:23][N:22]([C:25]3[C:26]4[CH:33]=[CH:32][NH:31][C:27]=4[N:28]=[CH:29][N:30]=3)[CH2:21][CH2:20]2)=[O:18])[CH2:9][CH2:10][N:11]([CH2:14][CH3:15])[CH2:12][CH3:13])=[CH:4][CH:3]=1.C(O)(C(F)(F)F)=O>C(Cl)Cl>[NH2:34][C:19]1([C:17]([NH:16][C@H:8]([C:5]2[CH:6]=[CH:7][C:2]([Cl:1])=[CH:3][CH:4]=2)[CH2:9][CH2:10][N:11]([CH2:12][CH3:13])[CH2:14][CH3:15])=[O:18])[CH2:20][CH2:21][N:22]([C:25]2[C:26]3[CH:33]=[CH:32][NH:31][C:27]=3[N:28]=[CH:29][N:30]=2)[CH2:23][CH2:24]1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 66674205(S)-tert-butyl 4-(1-(4-chlorophenyl)-3-(diethylamino)propylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate

Product 1

HCID 42602347HCID 42602347, compoundYield 43.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

(S)-1-(4-Chlorophenyl)-N3,N3-diethylpropane-1,3-diamine (Intermediate 60) (119 mg, 0.49 mmol) was added in one portion to 4-(tert-butoxycarbonylamino)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxylic acid (Intermediate 1) (179 mg, 0.49 mmol) and DIPEA (0.259 mL, 1.48 mmol) in DMA (5 mL). O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (207 mg, 0.54 mmol) was added and the resulting solution was stirred at 50° C. for 2 hours. The reaction mixture was diluted with EtOAc (25 mL), and washed sequentially with water (20 mL) and saturated brine (20 mL). The organic layer was dried over MgSO4, filtered and evaporated to afford crude product. The crude product was purified by flash silica chromatography, elution gradient 5 to 10% MeOH with ammonia in DCM. Pure fractions were evaporated to dryness to afford (S)-tert-butyl 4-(1-(4-chlorophenyl)-3-(diethylamino)propylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate (189 mg, 65.5%) as a colourless gum. (S)-tert-butyl 4-(1-(4-chlorophenyl)-3-(diethylamino)propylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate (189 mg, 0.33 mmol) was dissolved in DCM (5.00 mL) and TFA (1 mL) added. The reaction was stirred at ambient temperature for 2 hours. The crude product was purified by ion exchange chromatography, using an SCX column. The desired product was eluted from the column using 7N ammonia/MeOH and pure fractions were evaporated to dryness to afford crude product which was triturated with diethyl ether to afford (S)-4-amino-N-(1-(4-chlorophenyl)-3-(diethylamino)propyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamide (70.0 mg, 29.3%) as a white foam.

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. customto afford crude product which
  5. customwas triturated with diethyl ether

Sources & evidence

ORD record
ord-fa6da2adc9e14372a88ace20ed958e38
Source dataset
uspto-grants-2012_01
Patent number
US08101623B2

Reaction notes

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