Diisopropylethylamine → 3,6-dichloro-N-[(4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl]-4-[methyl(oxan-4-yl)amino]pyridine-2-carboxamide

HRID 2208802Notes

Reaction equation

HRID 2208802 reaction equation
[Cl:1][C:2]1[C:3]([C:17]([OH:19])=O)=[N:4][C:5]([Cl:16])=[CH:6][C:7]=1[N:8]([CH3:15])[CH:9]1[CH2:14][CH2:13][O:12][CH2:11][CH2:10]1.CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[NH2:53][CH2:54][C:55]1[C:56](=[O:63])[NH:57][C:58]([CH3:62])=[CH:59][C:60]=1[CH3:61]>CN(C=O)C.O>[Cl:1][C:2]1[C:3]([C:17]([NH:53][CH2:54][C:55]2[C:56](=[O:63])[NH:57][C:58]([CH3:62])=[CH:59][C:60]=2[CH3:61])=[O:19])=[N:4][C:5]([Cl:16])=[CH:6][C:7]=1[N:8]([CH3:15])[CH:9]1[CH2:10][CH2:11][O:12][CH2:13][CH2:14]1

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 70638443-(Aminomethyl)-4,6-dimethyl-1,2-dihydropyridin-2-oneHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 867195593,6-Dichloro-4-[methyl(oxan-4-yl)amino]pyridine-2-carboxylic acid

Product 1

HCID 867195603,6-dichloro-N-[(4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl]-4-[methyl(oxan-4-yl)amino]pyridine-2-carboxamideYield 41%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a stirred solution of 3,6-dichloro-4-[methyl(oxan-4-yl)amino]pyridine-2-carboxylic acid (85 mg, 0.28 mmol) in DMF (2 ml) was added DIPEA (73 μl, 0.42 mmol) and HATU (127 mg, 0.33 mmol). The reaction was stirred at room temperature for 5 min after which time 3-(aminomethyl)-4,6-dimethyl-1,2-dihydropyridin-2-one (89%, 52 mg, 0.31 mmol) was added and the reaction was stirred at room temperature for 16 h. The reaction mixture was then poured onto 50 ml of water and the aqueous phase was extracted with EtOAc (3×50 ml), washed with brine (50 ml) dried (Na2SO4) and evaporated to give an oil. The product was then purified using a 5 g silica Isolute column eluting with 0% to 5% MeOH in DCM and evaporated to give a glassy solid which was triturated with diethyl ether and filtered to afford the title compound as a white powder (50 mg, 41%). LC-MS 95%, m/z=439.0/440.8, 1H NMR (500 MHz, Chloroform-d) δ 11.33 (br. s, 1H), 8.20 (br. s, 1H), 6.79 (s, 1H), 5.93 (s, 1H), 4.51 (s, 2H), 4.02 (dd, J=11.4, 3.8 Hz, 2H), 3.92-3.72 (m, 1H), 3.39 (t, J=11.3 Hz, 2H), 2.78 (s, 3H), 2.38 (s, 3H), 2.27 (s, 3H), 1.89 (tt, J=12.0, 6.2 Hz, 2H), 1.83-1.52 (m, 2H).

Workup

  1. additionwas added
  2. extractionthe aqueous phase was extracted with EtOAc (3×50 ml)
  3. washwashed with brine (50 ml)
  4. dry with materialdried (Na2SO4)
  5. customevaporated
  6. customto give an oil
  7. customThe product was then purified
  8. washeluting with 0% to 5% MeOH in DCM
  9. customevaporated
  10. customto give a glassy solid which
  11. customwas triturated with diethyl ether
  12. filtrationfiltered

Sources & evidence

ORD record
ord-0e4777a85cfe424f8a5140c4ecd6d296
Source dataset
uspto-grants-2016_06
Patent number
US09376422B2

Reaction notes

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