1,8-Diazabicyclo(5.4.0)undec-7-ene → 7-(3-{1-[(1-tert-Butoxycarbonyl-piperidin-4-yl)-methyl-amino]-cyclopropyl}-pyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-8-methoxy-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid
Reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([N:14]([CH3:23])[C:15]2([CH:18]3[CH2:22][CH2:21][NH:20][CH2:19]3)[CH2:17][CH2:16]2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH:24]1([N:27]2[C:36]3[C:31](=[CH:32][C:33]([F:40])=[C:34](F)[C:35]=3[O:37][CH3:38])[C:30](=[O:41])[C:29]([C:42]([OH:44])=[O:43])=[CH:28]2)[CH2:26][CH2:25]1.C1CCN2C(=NCCC2)CC1>C(#N)C>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([N:14]([CH3:23])[C:15]2([CH:18]3[CH2:22][CH2:21][N:20]([C:34]4[C:35]([O:37][CH3:38])=[C:36]5[C:31]([C:30](=[O:41])[C:29]([C:42]([OH:44])=[O:43])=[CH:28][N:27]5[CH:24]5[CH2:26][CH2:25]5)=[CH:32][C:33]=4[F:40])[CH2:19]3)[CH2:16][CH2:17]2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 75 °C
Procedure
A solution of 4-[methyl-(1-pyrrolidin-3-yl-cyclopropyl)-amino]-piperidine-1-carboxylic acid tert-butyl ester (100 mg, 0.31 mmol) in acetonitrile (30.0 mL) was added 1-cyclopropyl-6,7-difluoro-8-methoxy-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid (98 mg, 0.33 mmol) and DBU (0.23 mL, 1.53 mmol). The suspension was heated to 75° C. overnight. The reaction mixture was partitioned between ethyl acetate and 5% citric acid. The separated organic layer was washed with brine, dried over sodium sulfate and concentrated in vacuo. The residue was purified by preparative thin layer chromatography (10% methanol in dichloromethane) to give the title compound as a yellow solid (102 mg, 62%). ESI MS m/z 599.3 (M+H+).
Workup
- customThe reaction mixture was partitioned between ethyl acetate and 5% citric acid
- washThe separated organic layer was washed with brine
- dry with materialdried over sodium sulfate
- concentrationconcentrated in vacuo
- customThe residue was purified by preparative thin layer chromatography (10% methanol in dichloromethane)
Sources & evidence
- ORD record
- ord-e43a46d6cfdc4ceb9aae55033b96b456
- Source dataset
- uspto-grants-2007_07
- Patent number
- US07238694B2
Reaction notes
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