Dichloromethane → N-[(1S,4S,6S)-3-azabicyclo[4.1.0]hept-4-ylmethyl]-5-(trifluoromethyl)-2-pyrazinamine
Reaction equation
[F:1][C:2]([F:26])([F:25])[C:3]1[N:4]=[CH:5][C:6]([NH:9][CH2:10][C@@H:11]2[CH2:17][C@H:16]3[C@H:14]([CH2:15]3)[CH2:13][N:12]2C(OC(C)(C)C)=O)=[N:7][CH:8]=1.C(Cl)Cl>>[C@H:14]12[CH2:15][C@H:16]1[CH2:17][C@@H:11]([CH2:10][NH:9][C:6]1[CH:5]=[N:4][C:3]([C:2]([F:26])([F:25])[F:1])=[CH:8][N:7]=1)[NH:12][CH2:13]2Participants
Procedure
To a solution of 1,1-dimethylethyl (1S,4S,6S)-4-({[5-(trifluoromethyl)-2-pyrazinyl]amino}methyl)-3-azabicyclo[4.1.0]heptane-3-carboxylate D30 (100 mg) in DCM (4 ml) TFA (2 ml, 26.0 mmol) was added dropwise. The mixture was left reacting at room temperature for 2 hours. Solvent was evaporated in vacuum and the crude was purified by SCX chromatography using MeOH 100% to MeOH/NH3 2M. It was recovered the title compound D31 (57 mg). UPLC: (Acid Final_QC): rt=0.48 minutes, peaks observed: 273 (M+1). C12H15F3N4 requires 272. 1H NMR (400 MHz, CDCl3). δ ppm 0.22-0.29 (m, 1 H) 0.67-0.76 (m, 1 H) 0.82-0.92 (m, 1 H) 1.02-1.13 (m, 1 H) 1.24-1.35 (m, 1 H) 2.01-2.12 (m, 1 H) 2.63-2.72 (m, 1 H) 2.95-3.06 (m, 1 H) 3.17 (dd, 1 H) 3.26 (d, 1 H) 3.53-3.63 (m, 1 H) 5.96 (br. s., 1 H) 7.91-7.96 (m, 1 H) 8.26-8.31 (m, 1 H).
Workup
- waitThe mixture was left
- customSolvent was evaporated in vacuum
- customthe crude was purified by SCX chromatography
- customIt was recovered the title compound D31 (57 mg)
- customrt=0.48 minutes, peaks
Sources & evidence
- ORD record
- ord-6b83bdbc9ffe49cb89ae9ba22f0ab365
- Source dataset
- uspto-grants-2012_03
- Patent number
- US08133908B2
Reaction notes
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