Potassium Carbonate → HCID 66757985, compound
Reaction equation
[CH3:1][O:2][C:3](=[O:20])[CH2:4][CH2:5][N:6]([CH2:12][C:13]1[CH:18]=[CH:17][C:16]([Cl:19])=[CH:15][CH:14]=1)[CH:7]1[CH2:11][CH2:10][NH:9][CH2:8]1.C(=O)([O-])[O-].[K+].[K+].Br[CH2:28][CH2:29]/[CH:30]=[C:31]1/[C:32]2[CH:45]=[C:44]([C:46]([OH:49])([CH3:48])[CH3:47])[CH:43]=[CH:42][C:33]=2[O:34][CH2:35][C:36]2[N:41]=[CH:40][CH:39]=[CH:38][C:37]/1=2>C(#N)C.O>[CH3:1][O:2][C:3](=[O:20])[CH2:4][CH2:5][N:6]([CH2:12][C:13]1[CH:14]=[CH:15][C:16]([Cl:19])=[CH:17][CH:18]=1)[CH:7]1[CH2:11][CH2:10][N:9]([CH2:28][CH2:29][CH:30]=[C:31]2[C:37]3[CH:38]=[CH:39][CH:40]=[N:41][C:36]=3[CH2:35][O:34][C:33]3[CH:42]=[CH:43][C:44]([C:46]([OH:49])([CH3:48])[CH3:47])=[CH:45][C:32]2=3)[CH2:8]1Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 50 °C
Procedure
To a solution of 3-[(4-chloro-benzyl)-pyrrolidin-3-yl-amino]-propionic acid methyl ester (0.06 g, 0.2 mmol) in acetonitrile:water (3:1) was added potassium carbonate (0.056 g, 0.4 mmol) and (E)-2-[5-(3-bromo-propylidene)-5,11-dihydro-10-oxa-1-aza-dibenzo[a,d]cyclohepten-7-yl]-propan-2-ol (0.065 g, 0.17 mmol) and reaction stirred at 50° C. for 24 h. The reaction mixture was concentrated in vacuo, diluted with ethyl acetate and dried over sodium sulfate. The crude product was purified by flash chromatography on silica using ethyl acetate/methanol (5%). 1H-NMR (CDCl3) δ: 1.40 (6H, s), 1.60 (1H, m), 1.80 (1H, m), 2.10-2.60 (8H, m), 3.20-3.40 (6H, m), 3.50 (2H, m; 2H, s), 5.20 (2H, br s), 6.15 (1H, t), 6.70 (1H, t), 7.18-7.42 (7H, m), 7.70 (1H, dd), 8.50 (1H, dd). ESI-MS m/z: 590 (M+1), UV retention time: 1.51 min.
Workup
- concentrationThe reaction mixture was concentrated in vacuo
- additiondiluted with ethyl acetate
- dry with materialdried over sodium sulfate
- customThe crude product was purified by flash chromatography on silica
Sources & evidence
- ORD record
- ord-93c6f03f97954269a80a6e95e4e0441c
- Source dataset
- uspto-grants-2009_06
- Patent number
- US07541365B2
Reaction notes
Loading…