Pyrrolidone carboxylic acid → HCID 67456266, compound

HRID 75879

Reaction equation

HRID 75879 reaction equation
[NH2:1][CH2:2][C:3]1[C:4]([NH:19][C@H:20]([C:22]2[CH:27]=[CH:26][C:25]([F:28])=[CH:24][CH:23]=2)[CH3:21])=[N:5][C:6]([NH:10][C:11]2[CH:15]=[C:14]([CH:16]3[CH2:18][CH2:17]3)[NH:13][N:12]=2)=[C:7]([F:9])[CH:8]=1.[O:29]=[C:30]1[NH:34][CH:33]([C:35](O)=[O:36])[CH2:32][CH2:31]1>C1COCC1.C(Cl)Cl>[CH:16]1([C:14]2[NH:13][N:12]=[C:11]([NH:10][C:6]3[N:5]=[C:4]([NH:19][C@H:20]([C:22]4[CH:23]=[CH:24][C:25]([F:28])=[CH:26][CH:27]=4)[CH3:21])[C:3]([CH2:2][NH:1][C:35]([CH:33]4[CH2:32][CH2:31][C:30](=[O:29])[NH:34]4)=[O:36])=[CH:8][C:7]=3[F:9])[CH:15]=2)[CH2:18][CH2:17]1

Participants

4

Reactant 2

HCID 499Pyrrolidone carboxylic acidHCID 67454991(S)-3-(Aminomethyl)-N6-(5-cyclopropyl-1H-pyrazol-3-yl)-5-fluoro-N2-(1-(4-fluorophenyl)ethyl)pyridine-2,6-diamine

Product 1

HCID 67456266HCID 67456266, compoundYield 10%

Reagents, catalysts & solvents 1

HCID 21919333Tetrahydrofurane dichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

A round bottom flask was charged with (S)-3-(aminomethyl)-N6-(5-cyclopropyl-1H-pyrazol-3-yl)-5-fluoro-N2-(1-(4-fluorophenyl)ethyl)pyridine-2,6-diamine (Example 3; 0.08 g, 0.2 mmol), 5-oxopyrrolidine-2-carboxylic acid loaded TFP resin (1.4 mmol/g loading, 0.2 mmol), and a THF-DCM solution (3 ml) at 0° C. The resulting solution was shaken vigorously at 0° C. for 45 min and filtered. The resulting resin was washed with a THF-DCM solution (1:1, 3×5 ml for 30 min. each). The resulting organic layers were combined and concentrated. The resulting solid was purified by reverse-phase column chromatography (5-50% CH3CN in H2O over 400 ml) to give the title compound (0.013 g, 10%). 1H NMR (400 MHz, CD3OD) δ 7.41-7.32 (m, 2H), 7.21-7.13 (m, 1H), 7.05-6.97 (m, 2H), 6.05 (s, 1H), 5.21-5.02 (m, 1H), 4.34-4.19 (m, 3H), 2.44-2.28 (m, 3H), 2.11-1.98 (m, 1H), 1.88-1.81 (m, 1H), 1.51 (d, J=5.2 Hz, 3H), 0.99-0.86 (m, 2H), 0.69-0.61 (m, 2H). MS: Calcd.: 495. Found: [M+H]+ 496.

Workup

  1. customat 0° C
  2. filtrationfiltered
  3. washThe resulting resin was washed with a THF-DCM solution (1:1, 3×5 ml for 30 min. each)
  4. concentrationconcentrated
  5. customThe resulting solid was purified by reverse-phase column chromatography (5-50% CH3CN in H2O over 400 ml)

Sources & evidence

ORD record
ord-32f818452fda4a0aa2397f42ee32e448
Source dataset
uspto-grants-2014_09
Patent number
US08835465B2

Linked notes

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