Triethylamine → HCID 58514777, compound
Reaction equation
CS(Cl)(=O)=O.[N:6]1[C:15]2[C:10](=[CH:11][C:12]([CH2:16][N:17]3[C:21]4=[N:22][C:23]([C:26]5[CH:27]=[N:28][N:29]([CH2:31][CH2:32]O)[CH:30]=5)=[CH:24][CH:25]=[C:20]4[N:19]=[N:18]3)=[CH:13][CH:14]=2)[CH:9]=[CH:8][CH:7]=1.C(N(CC)CC)C.[F-:41].[Cs+]>ClCCl.O.C(O)(C)(C)C>[F:41][CH2:32][CH2:31][N:29]1[CH:30]=[C:26]([C:23]2[N:22]=[C:21]3[N:17]([CH2:16][C:12]4[CH:11]=[C:10]5[C:15](=[CH:14][CH:13]=4)[N:6]=[CH:7][CH:8]=[CH:9]5)[N:18]=[N:19][C:20]3=[CH:25][CH:24]=2)[CH:27]=[N:28]1Participants
Procedure
Methane sulphonyl chloride (0.069 g, 0.605 mmol) was added at 0° C. to a solution of example 146 (0.150 g, 0.403 mmol) and triethylamine (0.122 g. 1.21 mmol) in dichloromethane (3 ml) and warmed to RT. After 1 h, the mixture was diluted and washed with sodium bicarbonate solution, washed with brine, dried over sodium sulphate and concentrated. To the residue, cesium fluoride (0.270 g, 1.77 mmol) and tert-butanol (2 ml) were added and heated to 70° C. for 12 h. The reaction mixture was poured in water, extracted with ethyl acetate, washed with brine, dried over sodium sulphate and concentrated. The crude product was purified by column chromatography using dichloromethane:methanol to afford the title compound as an off-white solid (0.015 g, 10%). M.P.: 168-170° C. 1H-NMR (δ ppm, DMSO-d6, 400 MHz): 8.88 (dd, J=4.2, 1.7 Hz, 1H), 8.57 (s, 1H), 8.53 (d, J=8.7 Hz, 1H), 8.37 (d, J=7.4 Hz, 1H), 8.26 (s, 1H), 8.01 (d, J=8.1 Hz, 1H), 7.99 (s, 1H), 7.83 (m, 2H), 7.53 (dd, J=8.3, 4.2 Hz, 1H), 6.11 (s, 2H), 4.88 (dt, J=47.1, 4.5 Hz, 2H), 4.56 (dt, J=27.7, 4.8 Hz, 2H) MS (m/z):: 374.1 (M++1).
Workup
- additionthe mixture was diluted
- washwashed with sodium bicarbonate solution
- washwashed with brine
- dry with materialdried over sodium sulphate
- concentrationconcentrated
- temperatureheated to 70° C. for 12 h
- extractionextracted with ethyl acetate
- washwashed with brine
- dry with materialdried over sodium sulphate
- concentrationconcentrated
- customThe crude product was purified by column chromatography
Sources & evidence
- ORD record
- ord-922708718c7c45b9a55e3291b7b32741
- Source dataset
- uspto-grants-2014_12
- Patent number
- US08912331B2
Reaction notes
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