Diisopropylamine → N-[(1R)-1-(4-fluorophenyl)ethyl]-3-(5-formyl-2-furyl)-5-[methyl (methylsulfonyl)amino]benzamide
Reaction equation
Br[C:2]1[CH:3]=[C:4]([CH:17]=[C:18]([N:20]([CH3:25])[S:21]([CH3:24])(=[O:23])=[O:22])[CH:19]=1)[C:5]([NH:7][C@@H:8]([C:10]1[CH:15]=[CH:14][C:13]([F:16])=[CH:12][CH:11]=1)[CH3:9])=[O:6].[CH:26]([C:28]1[O:32][C:31](B(O)O)=[CH:30][CH:29]=1)=[O:27].C1C=C(S([O-])(=O)=O)C=C(P(C2C=CC=C(S([O-])(=O)=O)C=2)C2C=CC=C(S([O-])(=O)=O)C=2)C=1.[Na+].[Na+].[Na+].C(NC(C)C)(C)C>CN(C=O)C>[F:16][C:13]1[CH:14]=[CH:15][C:10]([C@H:8]([NH:7][C:5](=[O:6])[C:4]2[CH:17]=[C:18]([N:20]([CH3:25])[S:21]([CH3:24])(=[O:23])=[O:22])[CH:19]=[C:2]([C:31]3[O:32][C:28]([CH:26]=[O:27])=[CH:29][CH:30]=3)[CH:3]=2)[CH3:9])=[CH:11][CH:12]=1Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of Intermediate X (0.280 g, 0.65 mmol) and (5-formyl-2-furyl)boronic acid (0.0912 g, 0.65 mmol) in 5 mL degassed DMF was added TPPTS (0.111 g, 0.20 mmol) Pd(OAc)2 (0.015 g, 0.07 mmol) and diisopropylamine (0.066 g, 0.65 mmol). After 15 h at rt, the reaction was diluted with satd. aqueous NaHCO3 and EtOAc, and the layers were separated. The organics were washed with brine, dried over Na2SO4, filtered and concentrated. Purification by normal phase chromatography (50->100% EtOAc/hexanes) afforded the desired coupled adduct. 1H NMR (400 MHz, CDCl3) δ 9.67 (s, 1H), 8.09 (m, 1H), 7.95 (m, 1H), 7.84 (m, 1H), 7.41-7.34 (m, 3H), 7.08 (m, 2H), 6.99 (d, J=5.9 Hz, 1H), 6.54 (d, J=7.5 Hz, 1H), 5.31 (m, 1H), 3.40 (s, 3H), 2.89 (s, 3H), 1.65 (d, J=7.0 Hz, 3H). LCMS [M+H]+=445.
Workup
- additionthe reaction was diluted with satd
- customaqueous NaHCO3 and EtOAc, and the layers were separated
- washThe organics were washed with brine
- dry with materialdried over Na2SO4
- filtrationfiltered
- concentrationconcentrated
- customPurification by normal phase chromatography (50->100% EtOAc/hexanes)
- customafforded the
Sources & evidence
- ORD record
- ord-d8d041948e1c41229cc0aa09741e7015
- Source dataset
- uspto-grants-2010_12
- Patent number
- US07847100B2
Reaction notes
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