Diisopropylethylamine → 4-[(5E)-5-(5,6-difluoro-2-oxo-1,2-dihydro-3H-indol-3-ylidene)-2,2-dimethyl-2,5-dihydrofuran-3-yl]-N-(2,3-dihydroxypropyl)-N-methylbenzamide
Reaction equation
[F:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][C:10]=1[F:11])[NH:7][C:6](=[O:12])/[C:5]/2=[C:13]1\[CH:14]=[C:15]([C:20]2[CH:28]=[CH:27][C:23]([C:24]([OH:26])=O)=[CH:22][CH:21]=2)[C:16]([CH3:19])([CH3:18])[O:17]\1.[CH3:29][NH:30][CH2:31][CH:32]([OH:35])[CH2:33][OH:34].F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2C=CC=CC=2N=N1.C(N(C(C)C)CC)(C)C>CN(C=O)C.O>[F:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][C:10]=1[F:11])[NH:7][C:6](=[O:12])/[C:5]/2=[C:13]1\[CH:14]=[C:15]([C:20]2[CH:21]=[CH:22][C:23]([C:24]([N:30]([CH2:31][CH:32]([OH:35])[CH2:33][OH:34])[CH3:29])=[O:26])=[CH:27][CH:28]=2)[C:16]([CH3:19])([CH3:18])[O:17]\1Participants
7
Reactant 4
Product 1
Reagents, catalysts & solvents 2
Procedure
A mixture of 4-[(5E)-5-(5,6-difluoro-2-oxo-1,2-dihydro-3H-indol-3-ylidene)-2,2-dimethyl-2,5-dihydro furan-3-yl]benzoic acid (50 mg, 0.13 mmol), 3-methylamino-1,2-propanediol (40 mg, 0.38 mmol), O-benzotriazol-1-yl-N,N,N′,N′-tetramethyluronium hexafluorophosphate (HBTU, 61 mg, 0.16 mmol) and diisopropylethylamine (37 mg, 0.29 mmol) in 6 mL of anhydrous DMF was stirred at room temperature for 10 minutes. The mixture was poured into 100 mL of water. The precipitates were filtered, washed with water, and dried in vacuum to give 4-[(5E)-5-(5,6-difluoro-2-oxo-1,2-dihydro-3H-indol-3-ylidene)-2,2-dimethyl-2,5-dihydrofuran-3-yl]-N-(2,3-dihydroxypropyl)-N-methylbenzamide as yellow solid. Yield: 47 mg, 81%.
Workup
- filtrationThe precipitates were filtered
- washwashed with water
- customdried in vacuum
Sources & evidence
- ORD record
- ord-85ef6c4b2f07436c9a8a05ffe6fe5149
- Source dataset
- uspto-grants-2014_11
- Patent number
- US08877923B2
Reaction notes
Loading…