5-Amino-1-cyclopropyl-6,7,8-trifluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid → 5-Amino-1-cyclopropyl-6,8-difluoro-7-[3-(4-Phenyl-1,2,3-triazol-1-yl)pyrrolidin-1-yl]-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

HRID 1742969Notes

Reaction equation

[NH2:1][C:2]1[C:11]([F:12])=[C:10](F)[C:9]([F:14])=[C:8]2[C:3]=1[C:4](=[O:21])[C:5]([C:18]([OH:20])=[O:19])=[CH:6][N:7]2[CH:15]1[CH2:17][CH2:16]1.Cl.[C:23]1([C:29]2[N:30]=[N:31][N:32]([CH:34]3[CH2:38][CH2:37][NH:36][CH2:35]3)[CH:33]=2)[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1.[N+](=C1CCCCCCCCCC1C1CCCCCCCCCC1)=[N-]>N1C=CC=CC=1>[NH2:1][C:2]1[C:11]([F:12])=[C:10]([N:36]2[CH2:37][CH2:38][CH:34]([N:32]3[CH:33]=[C:29]([C:23]4[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=4)[N:30]=[N:31]3)[CH2:35]2)[C:9]([F:14])=[C:8]2[C:3]=1[C:4](=[O:21])[C:5]([C:18]([OH:20])=[O:19])=[CH:6][N:7]2[CH:15]1[CH2:16][CH2:17]1

Participants

Conditions

Temperature: 90 °C

Procedure

A mixture of 5-amino-1-cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-quinoline-3-carboxylic acid (100 mg, 0.33 mmol), 3-(4-phenyl-1,2,3-triazol-1-yl)pyrrolidine hydrochloride (160 mg, 0.42 mmol) and diazobicycloundecane (102 mg, 0.67 mmol) in pyridine (5 ml) was heated at 90° C. for 20 hrs. The reaction mixture was concentrated and the residue was diluted with water. The separated solid was filtered, washed with water, methanol and then with CHCl3, followed by acetonitrile to get 16 mg (10%) of title compound, m.p. 265° C. 1H NMR (TFA) δ: 0.92-1.43 (m, 4H), 2.51-2.80 (m, 2H), 3.57-4.59 (m, 5H), 5.43-5.62 (m, 1H), 7.44 (dd, 5H), 8.50 (s, 1H), 8.84 (s, 1H).

Workup

concentrationThe reaction mixture was concentrated
additionthe residue was diluted with water
filtrationThe separated solid was filtered
washwashed with water, methanol

Sources & evidence

ORD record: ord-9621506843b848f893c6409e79618fd2
Source dataset: uspto-grants-1994_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05342846

Reaction notes

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