Diisopropylethylamine → (S)-methyl 3-(4-(tert-butoxycarbonylamino)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamido)-3-(4-chlorophenyl)propanoate

HRID 423040Notes

Reaction equation

HRID 423040 reaction equation
F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.[C:25]([O:29][C:30]([NH:32][C:33]1([C:48](O)=[O:49])[CH2:38][CH2:37][N:36]([C:39]2[C:40]3[CH:47]=[CH:46][NH:45][C:41]=3[N:42]=[CH:43][N:44]=2)[CH2:35][CH2:34]1)=[O:31])([CH3:28])([CH3:27])[CH3:26].C(N(CC)C(C)C)(C)C.[NH2:60][C@H:61]([C:67]1[CH:72]=[CH:71][C:70]([Cl:73])=[CH:69][CH:68]=1)[CH2:62][C:63]([O:65][CH3:66])=[O:64]>CN1C(=O)CCC1.CCOC(C)=O>[C:25]([O:29][C:30]([NH:32][C:33]1([C:48]([NH:60][C@H:61]([C:67]2[CH:68]=[CH:69][C:70]([Cl:73])=[CH:71][CH:72]=2)[CH2:62][C:63]([O:65][CH3:66])=[O:64])=[O:49])[CH2:38][CH2:37][N:36]([C:39]2[C:40]3[CH:47]=[CH:46][NH:45][C:41]=3[N:42]=[CH:43][N:44]=2)[CH2:35][CH2:34]1)=[O:31])([CH3:26])([CH3:28])[CH3:27]

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 2400961(S)-Methyl 3-amino-3-(4-chlorophenyl)propanoate2×HCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 577503944-((tert-Butoxycarbonyl)amino)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxylic acid2×

Product 1

HCID 57750405(S)-methyl 3-(4-(tert-butoxycarbonylamino)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamido)-3-(4-chlorophenyl)propanoateYield 82.3%

Reagents, catalysts & solvents 2

HCID 8857Ethyl AcetateSolventHCID 13387N-methyl-2-pyrrolidoneSolvent

Conditions

Temperature
20 °C

Procedure

O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluoro-phosphate (1.157 g, 3.04 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) (1 g, 2.77 mmol) and N,N-diisopropylethylamine (1.006 mL, 6.09 mmol) in NMP (10 mL) at 20° C. The resulting solution was stirred at 20° C. for 5 minutes. (S)-methyl 3-amino-3-(4-chlorophenyl)propanoate (hydrochloride) (Intermediate 20) (0.692 g, 2.77 mmol) was then added to the solution and stirred at room temperature for 3 hours. The reaction mixture was diluted with EtOAc (100 mL), and washed sequentially with water (2×50 mL) and brine (50 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 0 to 5% MeOH in DCM. Pure fractions were evaporated to dryness to afford (S)-methyl 3-(4-(tert-butoxycarbonylamino)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamido)-3-(4-chlorophenyl)propanoate (1.27 g, 82%) as a white solid. 1H NMR (399.9 MHz, DMSO-d6) δ 1.40 (9H, s), 1.99 (2H, s), 2.04-2.07 (2H, m), 2.79-2.84 (2H, m), 3.56 (3H, s), 3.60-3.66 (1H, m), 3.67-3.70 (1H, m), 4.20 (2H, t), 5.20-5.26 (1H, m), 6.73 (1H, d), 7.13 (1H, s), 7.27 (1H, t), 7.35 (4H, q), 8.14 (1H, d), 8.21 (1H, s), 11.98 (1H, s). m/z (ESI+) (M+H)+=557; HPLC tR=2.12 min.

Workup

  1. stirringstirred at room temperature for 3 hours
  2. washwashed sequentially with water (2×50 mL) and brine (50 mL)
  3. dry with materialThe organic layer was dried over MgSO4
  4. filtrationfiltered
  5. customevaporated
  6. customto afford crude product
  7. customThe crude product was purified by flash silica chromatography, elution gradient 0 to 5% MeOH in DCM
  8. customPure fractions were evaporated to dryness

Sources & evidence

ORD record
ord-a7995c83d59f402c9a49d80a6a21e3ac
Source dataset
uspto-grants-2012_01
Patent number
US08101623B2

Reaction notes

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