Triethylamine → HCID 58728283, compound

HRID 1992110Notes

Reaction equation

HRID 1992110 reaction equation
Cl.Cl.[Cl:3][C:4]1[CH:5]=[C:6]([C:11]2([CH2:17][CH2:18][N:19]3[C@H:24]4[CH2:25][CH2:26][C@@H:20]3[CH2:21][CH:22]([N:27]3[C:31]5[CH:32]=[CH:33][CH:34]=[CH:35][C:30]=5[N:29]=[C:28]3[CH3:36])[CH2:23]4)[CH2:16][CH2:15][NH:14][CH2:13][CH2:12]2)[CH:7]=[C:8]([F:10])[CH:9]=1.C(N(CC)CC)C.[CH3:44][C:45]([CH3:50])([CH3:49])[C:46](Cl)=[O:47]>ClCCl>[Cl:3][C:4]1[CH:5]=[C:6]([C:11]2([CH2:17][CH2:18][N:19]3[C@H:24]4[CH2:25][CH2:26][C@@H:20]3[CH2:21][CH:22]([N:27]3[C:31]5[CH:32]=[CH:33][CH:34]=[CH:35][C:30]=5[N:29]=[C:28]3[CH3:36])[CH2:23]4)[CH2:12][CH2:13][N:14]([C:46](=[O:47])[C:45]([CH3:50])([CH3:49])[CH3:44])[CH2:15][CH2:16]2)[CH:7]=[C:8]([F:10])[CH:9]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 62493Pivaloyl chlorideHCID 68677306HCID 68677306, compound

Product 1

HCID 58728283HCID 58728283, compoundYield 27.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture of 1-((1R,5S)-8-{2-[4-(3-chloro-5-fluorophenyl)piperidin-4-yl]ethyl}-8-azabicyclo[3.2.1]oct-3-yl)-2-methyl-1H-benzimidazole dihydrochloride (0.2 g, 0.39 mmol), triethylamine (0.11 mL, 0.78 mmol) and trimethylacetyl chloride (0.053 mL, 0.43 mmol) in dichloromethane (4 mL) was stirred at rt for 1 h before the reaction mixture was quenched with saturated sodium bicarbonate solution. The organic layer was separated, dried, concentrated and purified by two successive chromatographies on silica gel using a dichloromethane to methanol:dichloromethane 1:20 gradient to give 1-((1R,5S)-8-{2-[4-(3-chloro-5-fluorophenyl)-1-(2,2-dimethylpropanoyl)piperidin-4-yl]ethyl}-8-azabicyclo[3.2.1]oct-3-yl)-2-methyl-1H-benzimidazole as a glass (0.06 g, 27%). 1H NMR (400 MHz, CDCl3) δ 7.67 (m, 1H), 7.29 (m, 1H), 7.17 (m, 2H), 7.09 (m, 1H), 7.00 (m, 1H), 6.93 (m, 1H), 4.72 (m, 1H), 3.90 (m, 2H), 3.37 (m; 4H), 2.61 (s, 3H), 2.47 (m, 2H), 1.89-2.11 (m, 8H), 1.78 (m, 6H), 1.27 (s, 9H). HRMS C33H42ClFN4O m/z 565.3109 (M+H)Cal., 565.3095 (M+H)Obs..

Workup

  1. customwas quenched with saturated sodium bicarbonate solution
  2. customThe organic layer was separated
  3. customdried
  4. concentrationconcentrated
  5. custompurified by two successive chromatographies on silica gel using a dichloromethane to methanol:dichloromethane 1:20 gradient

Sources & evidence

ORD record
ord-0af176d4860d412091bd3b9da6bbaa11
Source dataset
uspto-grants-2010_01
Patent number
US07645771B2

Reaction notes

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