Reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2[CH:19]=[CH:18][C:17]([CH2:20][C:21]([OH:23])=O)=[CH:16][CH:15]=2)[CH:10]([O:24][CH2:25][C:26]2[CH:35]=[CH:34][C:33]3[C:28](=[CH:29][CH:30]=[CH:31][CH:32]=3)[CH:27]=2)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[NH2:36][CH2:37][C:38]([C:40]1[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=1)=[O:39].C(N(CC)CC)C.F[B-](F)(F)F.O=C1C=CC=CN1OC(N(C)C)=[N+](C)C>CN(C)C=O>[CH:27]1[C:28]2[C:33](=[CH:32][CH:31]=[CH:30][CH:29]=2)[CH:34]=[CH:35][C:26]=1[CH2:25][O:24][CH:10]1[CH:11]([C:14]2[CH:15]=[CH:16][C:17]([CH2:20][C:21](=[O:23])[NH:36][CH2:37][C:38](=[O:39])[C:40]3[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=3)=[CH:18][CH:19]=2)[CH2:12][CH2:13][N:8]([C:6]([O:5][C:1]([CH3:3])([CH3:2])[CH3:4])=[O:7])[CH2:9]1Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 150 mg (0.32 mmol) of (3RS,4RS)-[4-(1-tert-butoxycarbonyl-3-naphthalen-2-ylmethoxy-piperidin-4-yl)-phenyl]-acetic acid and 55 mg (0.32 mmol) of 2-amino-1-phenyl-ethanone in 5 ml of dimethylformamide was treated in sequence with 44.6 μl (0.32 mmol) of triethylamine and 96 mg (0.32 mmol) of O-(1,2-dihydro-2-oxo-1-pyridyl)-N,N,N',N'-tetramethyluronium tetrafluoroborate (TPTU) and the mixture was stirred at room temperature for 18 hours. For the working-up, the reaction was evaporated in an oil pump vacuum, the residue was taken up in 20 ml of methylene chloride and washed with 5 ml of water. The organic phase was dried over sodium sulphate and evaporated under reduced pressure. For purification, the crude material was chromatographed on silica gel using a 95:5 mixture of methylene chloride and methanol as the eluent. There were obtained 120 mg (64% of theory) of tert-butyl (3RS,4RS)-3-(naphthalen-2-ylmethoxy)-4-{4-[(2-oxo-2-phenyl-ethylcarbamoyl)-methyl]-phenyl}-piperidine-1-carboxylate as a colourless oil; MS: 615 (M+Na)+.
Workup
- customthe reaction was evaporated in an oil pump vacuum
- washwashed with 5 ml of water
- dry with materialThe organic phase was dried over sodium sulphate
- customevaporated under reduced pressure
- customFor purification
- customthe crude material was chromatographed on silica gel using
- additiona 95:5 mixture of methylene chloride and methanol as the eluent
Sources & evidence
- ORD record
- ord-f37709a46e234858a35092950aebf624
- Source dataset
- uspto-grants-2000_11
- Patent number
- US06150526
Linked notes
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