Pivalic acid → HCID 66575765, compound

HRID 2208686Notes

Reaction equation

HRID 2208686 reaction equation
[Br:1][C:2]1[CH:3]=[C:4]([N:22]([CH3:29])[CH:23]2[CH2:28][CH2:27][NH:26][CH2:25][CH2:24]2)[C:5]([CH3:21])=[C:6]([CH:20]=1)[C:7]([NH:9][CH2:10][C:11]1[C:12](=[O:19])[NH:13][C:14]([CH3:18])=[CH:15][C:16]=1[CH3:17])=[O:8].CCN=C=NCCCN(C)C.Cl.C1C=CC2N(O)N=NC=2C=1.C(N(CC)CC)C.[C:59](O)(=[O:64])[C:60]([CH3:63])([CH3:62])[CH3:61]>CN(C=O)C.O>[Br:1][C:2]1[CH:3]=[C:4]([N:22]([CH3:29])[CH:23]2[CH2:28][CH2:27][N:26]([C:59](=[O:64])[C:60]([CH3:63])([CH3:62])[CH3:61])[CH2:25][CH2:24]2)[C:5]([CH3:21])=[C:6]([CH:20]=1)[C:7]([NH:9][CH2:10][C:11]1[C:12](=[O:19])[NH:13][C:14]([CH3:18])=[CH:15][C:16]=1[CH3:17])=[O:8]

Participants

8

Reactant 5

HCID 6417Pivalic acidHCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 66575763HCID 66575763, compound

Product 1

HCID 66575765HCID 66575765, compoundYield 56%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a stirred solution of 5-bromo-N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-2-methyl-3-(methyl(piperidine-4-yl)amino)benzamide (0.05 g, 0.112 mmol) in DMF (2 mL), EDCI.HCl (0.064 g, 0.336 mmol), HOBt (0.03 g, 0.22 mmol), triethyl amine (0.03 g, 0.336 mmol) and pivalic acid (0.023 g, 0.224 mmol) were added at room temperature and stirred at same temperature for 18 h. On completion, water was added and extracted with 10% MeOH/DCM. Combined organic layers were dried, concentrated giving crude material; which then purified by column chromatography to afford the desired compound (0.03 g, 56%). LCMS: 545.20 (M+1)+; HPLC: 98.60% (@ 254 nm) (Rt; 6.355; Method: Column: YMC ODS-A 150 mm×4.6 mm×5μ; Mobile Phase: A; 0.05% TFA in water/B; 0.05% TFA in acetonitrile; Inj. Vol: 10 μL, Col. Temp.: 30° C.; Flow rate.: 1.4 mL/min.; Gradient: 5% B to 95% B in 8 min, Hold for 1.5 min, 9.51-12 min 5% B); 1H NMR (DMSO-d6, 400 MHz) δ 11.46 (s, 1H), 8.20 (t, 1H, J=4.4 Hz), 7.25 (d, 1H, J=2.8 Hz), 7.05 (d, 1H, J=1.2 Hz), 5.85 (s, 1H), 4.23-4.25 (m, 4H), 3.00 (m, 1H), 2.76 (t, 2H, J=12.4 Hz), 2.54 (s, 3H), 2.18 (s, 3H), 2.14 (s, 3H), 2.10 (s, 3H), 1.62-1.65 (m, 2H), 1.42-1.48 (m, 2H), 1.18 (s, 9H).

Workup

  1. extractionextracted with 10% MeOH/DCM
  2. customCombined organic layers were dried
  3. concentrationconcentrated
  4. customgiving crude material
  5. customwhich then purified by column chromatography

Sources & evidence

ORD record
ord-321445ee1d86409c92447bbc1ecc8173
Source dataset
uspto-grants-2016_06
Patent number
US09376422B2

Reaction notes

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