Methylamine → HCID 22050313, compound

HRID 1832087Notes

Reaction equation

HRID 1832087 reaction equation
[Br:1][C:2]1[C:3](=[O:29])[N:4]([C:19]2[CH:20]=[C:21]([CH:25]=[CH:26][C:27]=2[F:28])[C:22](O)=[O:23])[C:5]([CH3:18])=[CH:6][C:7]=1[O:8][CH2:9][C:10]1[CH:15]=[CH:14][C:13]([F:16])=[CH:12][C:11]=1[F:17].ClC(OCC(C)C)=O.[CH3:38][N:39]1CCOCC1.CN>CN(C)C=O>[Br:1][C:2]1[C:3](=[O:29])[N:4]([C:19]2[CH:20]=[C:21]([CH:25]=[CH:26][C:27]=2[F:28])[C:22]([NH:39][CH3:38])=[O:23])[C:5]([CH3:18])=[CH:6][C:7]=1[O:8][CH2:9][C:10]1[CH:15]=[CH:14][C:13]([F:16])=[CH:12][C:11]=1[F:17]

Participants

6

Reactant 4

HCID 6329MethylamineHCID 79724-MethylmorpholineHCID 62365Isobutyl chloroformateHCID 22050518HCID 22050518, compound

Product 1

HCID 22050313HCID 22050313, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A solution of 3-[3-bromo-4-[(2,4-difluorobenzyl)oxy]-6-methyl-2-oxopyridin-1(2H)-yl]-4-fluorobenzoic acid (1 g, 2.1 mmol) in N,N-dimethylformamide (20 mL) was cooled to −10 C. Isobutyl chloroformate (0.27 mL, 2.1 mmol) and N-methyl morpholine (0.23 mL, 2.1 mmol) were added to the reaction vessel. After stirring at −10 C for 20 minutes, a solution of N-methyl amine (2.1 mL, 4.2 mmol, 2 M in THF) was added and the reaction mixture was warmed to room temperature as it stirred for 18 hours. The reaction mixture was concentrated in vacuo, suspended in water, filtered and washed with water, ethyl acetate and diethyl ether. 1H NMR (400 MHz, CD3OD) δ 8.03 (dddd, J=3.0, 6.4, 9.2 and 11.6 Hz, 1H), 7.81 (dd, J 3.0 and (0.2 Hz, 1H), 7.66 (q, J=10.4 Hz, 1H), 7.47 (t, J=12 Hz, 1H), 7.06 (t, J=12 Hz, 2H), 6.67 (s, 1H), 5.38 (s, 2H), 2.91 (s, 3H), 2.10 (s, 3H) ppm. 19F NMR (400 MHz, CD3OD) δ−111.50 (1 F), −115.97 (1 F), −120.16 ppm. ES-HRMS m/z 481.0346 (M+H calcd for C21H17BrF3N2O3 requires 481.0369).

Workup

  1. stirringstirred for 18 hours
  2. concentrationThe reaction mixture was concentrated in vacuo
  3. filtrationfiltered
  4. washwashed with water, ethyl acetate and diethyl ether

Sources & evidence

ORD record
ord-604e55e0d5054bfda213478cb4e3de1a
Source dataset
uspto-grants-2006_06
Patent number
US07067540B2

Reaction notes

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