Pyridine → N-(4-(2-acetamidopyridin-4-yloxy)-2-fluorophenyl)-N'-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide

HRID 476376Notes

Reaction equation

HRID 476376 reaction equation
[NH2:1][C:2]1[CH:7]=[C:6]([O:8][C:9]2[CH:14]=[CH:13][C:12]([NH:15][C:16]([C:18]3([C:21]([NH:23][C:24]4[CH:29]=[CH:28][C:27]([F:30])=[CH:26][CH:25]=4)=[O:22])[CH2:20][CH2:19]3)=[O:17])=[C:11]([F:31])[CH:10]=2)[CH:5]=[CH:4][N:3]=1.N1C=CC=CC=1.[C:38](OC(=O)C)(=[O:40])[CH3:39]>C(Cl)Cl>[C:38]([NH:1][C:2]1[CH:7]=[C:6]([O:8][C:9]2[CH:14]=[CH:13][C:12]([NH:15][C:16]([C:18]3([C:21]([NH:23][C:24]4[CH:25]=[CH:26][C:27]([F:30])=[CH:28][CH:29]=4)=[O:22])[CH2:20][CH2:19]3)=[O:17])=[C:11]([F:31])[CH:10]=2)[CH:5]=[CH:4][N:3]=1)(=[O:40])[CH3:39]

Participants

5

Reactant 3

HCID 1049PyridineHCID 7918Acetic AnhydrideHCID 59596943N-(4-(2-aminopyridin-4-yloxy)-2-fluorophenyl)-N'-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide

Product 1

HCID 66604602N-(4-(2-acetamidopyridin-4-yloxy)-2-fluorophenyl)-N'-(4-fluorophenyl)cyclopropane-1,1-dicarboxamideYield 70.4%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of N-(4-(2-aminopyridin-4-yloxy)-2-fluorophenyl)-N′-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide (61 mg, 0.14 mmol) in CH2Cl2 (3 mL) was treated with pyridine (0.058 mL, 0.72 mmol) and acetic anhydride (0.13 mL, 1.4 mmol). The resultant mixture was stirred at RT for 2 days. The reaction was quenched with saturated aqueous NaHCO3 and was further stirred for 2 h. The mixture was diluted with EtOAc (30 mL) and was washed with saturated aqueous NaHCO3 (20 mL), water (20 mL) and brine (20 mL). The mixture was concentrated in vacuo and purified by silica gel chromatography to provide N-(4-(2-acetamidopyridin-4-yloxy)-2-fluorophenyl)-N′-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide (46 mg, 69% yield). 1H NMR (400 MHz, DMSO-d6): δ10.56 (s, 1H), 10.54 (s, 1H), 9.96 (s, 1H), 8.18 (d, J=5.8 Hz, 1H), 7.92 (t, 1H), 7.65 (d, J=1.9 Hz, 1H) 7.59 (m, 2H), 7.24 (dd, J=11.2, 2.5 Hz, 1H), 7.15 (m, 2H), 7.01 (m, 1H), 6.68 (dd, J=5.7, 2.3 Hz, 1H), 2.02 (s, 3H), 1.60-1.52 (m, 4H); MS (ESI) m/z: 467.2 (M+H+).

Workup

  1. customThe reaction was quenched with saturated aqueous NaHCO3
  2. additionThe mixture was diluted with EtOAc (30 mL)
  3. washwas washed with saturated aqueous NaHCO3 (20 mL), water (20 mL) and brine (20 mL)
  4. concentrationThe mixture was concentrated in vacuo
  5. custompurified by silica gel chromatography

Sources & evidence

ORD record
ord-77f980be3c6c4ed9b3e974816d277046
Source dataset
uspto-grants-2014_01
Patent number
US08637672B2

Reaction notes

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