Diisopropylethylamine → 5-Chloro-3-[ethyl(1-methylpiperidin-4-yl)amino]-2-methyl-N-[(6-methyl-2-oxo-4-propyl-1,2-dihydropyridin-3-yl)methyl]benzamide

HRID 2208961Notes

Reaction equation

HRID 2208961 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([N:12]([CH2:20][CH3:21])[CH:13]2[CH2:18][CH2:17][N:16]([CH3:19])[CH2:15][CH2:14]2)[C:5]([CH3:11])=[C:6]([CH:10]=1)[C:7]([OH:9])=O.Cl.[NH2:23][CH2:24][C:25]1[C:26](=[O:35])[NH:27][C:28]([CH3:34])=[CH:29][C:30]=1[CH2:31][CH2:32][CH3:33].C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CS(C)=O>[Cl:1][C:2]1[CH:3]=[C:4]([N:12]([CH2:20][CH3:21])[CH:13]2[CH2:18][CH2:17][N:16]([CH3:19])[CH2:15][CH2:14]2)[C:5]([CH3:11])=[C:6]([CH:10]=1)[C:7]([NH:23][CH2:24][C:25]1[C:26](=[O:35])[NH:27][C:28]([CH3:34])=[CH:29][C:30]=1[CH2:31][CH2:32][CH3:33])=[O:9]

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 2724699PyBOPHCID 708738575-Chloro-3-[ethyl(1-methylpiperidin-4-yl)amino]-2-methylbenzoic acidHCID 708741233-AMinoMethyl-6-Methyl-4-propyl-1H-pyridin-2-one hydrochloride

Product 1

HCID 708746185-Chloro-3-[ethyl(1-methylpiperidin-4-yl)amino]-2-methyl-N-[(6-methyl-2-oxo-4-propyl-1,2-dihydropyridin-3-yl)methyl]benzamideYield 17.1%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Conditions

Temperature
23 °C

Procedure

To a stirred solution of 5-chloro-3-[ethyl(1-methylpiperidin-4-yl)amino]-2-methylbenzoic acid (crude material, 1.80 g, 3.26 mmol) and 3-(aminomethyl)-6-methyl-4-propyl-1,2-dihydropyridin-2-one HCl salt (916 mg, 4.24 mmol) in DMSO (10 mL) was added PyBOP (3.10 g, 5.87 mmol) and hunig base (1.20 g, 9.78 mmol). The reaction mixture was stirred at 23° C. for 16 hours. The reaction mixture was quenched with water and resulting precipitate was collected. The solid was purified by silica gel column chromatography (NH—SiO2 Ethylacetate/MeOH=10/1) to give the titled compound as a white solid (264 mg, 17% yield). 1H-NMR (400 MHz, CDCl3) δppm; 7.20 (t, J=5.9 Hz, 1H), 7.06 (d, J=2.0 Hz, 1H), 7.02 (d, J=2.0 Hz, 1H), 5.96 (s, 1H), 4.54 (d, J=5.9 Hz, 2H), 3.02 (q, J=7.0 Hz, 2H), 2.81 (m, 2H), 2.64-2.71 (m, 3H), 2.21-2.27 (s×3, 9H), 1.84-1.94 (m, 2H), 1.55-1.65 (m, 6H), 1.00 (t, J=7.4 Hz, 3H), 0.84 (t, J=7.0 Hz, 3H); MS (ES) [M+H] 473.1, [M+Na] 495.3; HPLC 94.7% purity.

Workup

  1. customThe reaction mixture was quenched with water
  2. customresulting precipitate
  3. customwas collected
  4. customThe solid was purified by silica gel column chromatography (NH—SiO2 Ethylacetate/MeOH=10/1)

Sources & evidence

ORD record
ord-c6d3803bc2d44a73a5c26b92ab39a90f
Source dataset
uspto-grants-2016_06
Patent number
US09376422B2

Reaction notes

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