Triethylamine → HCID 59002978, compound

HRID 561111Notes

Reaction equation

[CH:1]1([N:4]2[C:13]3[C:8](=[C:9]([NH:18][CH3:19])[C:10]([F:17])=[C:11](F)[C:12]=3[O:14][CH3:15])[C:7](=[O:20])[C:6]([C:21]([OH:23])=[O:22])=[CH:5]2)[CH2:3][CH2:2]1.[N:24]1[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=1[NH:30][CH2:31][CH2:32][NH2:33].C(N(CC)CC)C>CS(C)=O>[CH:1]1([N:4]2[C:13]3[C:8](=[C:9]([NH:18][CH3:19])[C:10]([F:17])=[C:11]([NH:33][CH2:32][CH2:31][NH:30][C:25]4[CH:26]=[CH:27][CH:28]=[CH:29][N:24]=4)[C:12]=3[O:14][CH3:15])[C:7](=[O:20])[C:6]([C:21]([OH:23])=[O:22])=[CH:5]2)[CH2:3][CH2:2]1

Participants

Conditions

Temperature: 100 °C

Procedure

A mixture of 1-cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-5-methylamino-4-oxoquinoline-3-carboxylic acid (500 mg, 1.54 mmol), N-2-pyridyl-1,2-ethanediamine (423 mg, 3.03 mmol) and triethylamine (0.430 mL, 3.09 mmol) in anhydrous DMSO (8 mL) was stirred at 100° C. for 3 h. After cooling, the reaction mixture was poured into ice-water (50 mL) and extracted with EtOAc (2×100 mL). The organic layers were combined, washed with water, dried over Na2SO4, and evaporated. The residue was purified by column chromatography (hexane: EtOAc 1:1→EtOAc) to give 1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-5-methylamino-7-[2-(2-pyridylamino)ethylamino]-4-oxoquinoline-3-carboxylic acid (373 mg, 55%) as a yellow solid.

Workup

temperatureAfter cooling
extractionextracted with EtOAc (2×100 mL)
washwashed with water
dry with materialdried over Na2SO4
customevaporated
customThe residue was purified by column chromatography (hexane: EtOAc 1:1→EtOAc)

Sources & evidence

ORD record: ord-636356477ae14f42818560a3fbde2414
Source dataset: uspto-grants-2011_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08063221B2

Reaction notes

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