Methoxyisopropylamine → 7-(3,5-Dimethylisoxazol-4-yl)-6-methoxy-N-(1-methoxypropan-2-yl)-3-nitroquinolin-4-amine

HRID 1482916Notes

Reaction equation

Cl[C:2]1[C:11]2[C:6](=[CH:7][C:8]([C:14]3[C:15]([CH3:20])=[N:16][O:17][C:18]=3[CH3:19])=[C:9]([O:12][CH3:13])[CH:10]=2)[N:5]=[CH:4][C:3]=1[N+:21]([O-:23])=[O:22].[CH3:24][O:25][CH2:26][CH:27]([NH2:29])[CH3:28]>O1CCOCC1>[CH3:20][C:15]1[C:14]([C:8]2[CH:7]=[C:6]3[C:11]([C:2]([NH:29][CH:27]([CH3:28])[CH2:26][O:25][CH3:24])=[C:3]([N+:21]([O-:23])=[O:22])[CH:4]=[N:5]3)=[CH:10][C:9]=2[O:12][CH3:13])=[C:18]([CH3:19])[O:17][N:16]=1

Participants

Conditions

Temperature: 70 °C

Procedure

To a solution of 4-(4-chloro-6-methoxy-3-nitroquinolin-7-yl)-3,5-dimethylisoxazole (Manchester Organics) (20 g, 59.9 mmol) in 1,4-dioxane (200 ml) was added 1-methoxypropan-2-amine (31.6 ml, 300 mmol) and the reaction mixture heated at 70° C. for 1.5 h. The solvent was removed under reduced pressure and the resulting solid partitioned between ethyl acetate (3×750 ml) and water (750 ml). The organic layers were combined, dried (hydrophobic frit) and evaporated under reduced pressure to give 7-(3,5-dimethylisoxazol-4-yl)-6-methoxy-N-(1-methoxypropan-2-yl)-3-nitroquinolin-4-amine (25.8 g), which was used without further purification in the subsequent step.

Workup

customThe solvent was removed under reduced pressure
customthe resulting solid partitioned between ethyl acetate (3×750 ml) and water (750 ml)
customdried (hydrophobic frit)
customevaporated under reduced pressure

Sources & evidence

ORD record: ord-58cc2f3ca84648b58c981fc441598e7c
Source dataset: uspto-grants-2016_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09416130B2

Reaction notes

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