Triethylamine → N-[1-(3-(2-fluorophenyl)propan-1-yl)piperidin-4-ylmethyl]-5-thia-1,8b-diazaacenaphthylene-4-carboxamide

HRID 1978456Notes

Reaction equation

HRID 1978456 reaction equation
Cl.Cl.[NH:3]1[CH2:8][CH2:7][CH:6]([CH2:9][NH:10][C:11]([C:13]2[S:23][C:22]3[N:24]4[C:15](=[CH:16][N:17]=[C:18]4[CH:19]=[CH:20][CH:21]=3)[CH:14]=2)=[O:12])[CH2:5][CH2:4]1.C(N(CC)CC)C.S(O[CH2:37][CH2:38][CH2:39][C:40]1[CH:45]=[CH:44][CH:43]=[CH:42][C:41]=1[F:46])(=O)(=O)C>C(O)C>[F:46][C:41]1[CH:42]=[CH:43][CH:44]=[CH:45][C:40]=1[CH2:39][CH2:38][CH2:37][N:3]1[CH2:8][CH2:7][CH:6]([CH2:9][NH:10][C:11]([C:13]2[S:23][C:22]3[N:24]4[C:15](=[CH:16][N:17]=[C:18]4[CH:19]=[CH:20][CH:21]=3)[CH:14]=2)=[O:12])[CH2:5][CH2:4]1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 120714612-Fluorophenylpropyl mesylateHCID 21993937N-(piperidin-4-ylmethyl)-5-thia-1,8b-diazaacenaphthylene-4-carboxamide dihydrochloride

Product 1

HCID 21993941N-[1-(3-(2-fluorophenyl)propan-1-yl)piperidin-4-ylmethyl]-5-thia-1,8b-diazaacenaphthylene-4-carboxamide

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

Under nitrogen gas, 0.38 ml (4.90 mM) of methanesulfonyl chloride was added to a solution of 499 mg (3.24 mM) of 2-fluorophenylpropanol and 0.90 ml (6.47 mM) of triethylamine in methylene chloride (6 ml) at 0° C. and the mixture was stirred at the prevailing temperature for 20 minutes. The reaction was stopped by adding saturated aqueous solution of sodium hydrogen carbonate. The reaction mixture was then extracted with diethyl ether. The organic layer was washed with water and saturated aqueous solution of sodium chloride and dried over MgSO4. The solvent was then distilled off under reduced pressure to provide 0.722 g (3.24 mM) of 2-fluorophenylpropyl mesylate. To a solution of 0.58 g (1.5 mM) of N-(piperidin-4-ylmethyl)-5-thia-1,8b-diazaacenaphthylene-4-carboxamide dihydrochloride and 1.0 ml (7.2 mM) of triethylamine in ethanol was added 0.60 g (2.69 mM) of 2-fluorophenylpropyl mesylate at room temperature, and the mixture was refluxed under nitrogen for 16 hours. The solvent was then distilled off under reduced pressure and the residue was diluted with water and extracted with chloroform. The organic -layer was washed with saturated aqueous solution of sodium chloride and dried over MgSO4. The resulting crude product was purified by column chromatography (methanol/ethyl acetate 20-50%) to provide the title compound.

Workup

  1. temperaturethe mixture was refluxed under nitrogen for 16 hours
  2. distillationThe solvent was then distilled off under reduced pressure
  3. additionthe residue was diluted with water
  4. extractionextracted with chloroform
  5. washThe organic -layer was washed with saturated aqueous solution of sodium chloride
  6. dry with materialdried over MgSO4
  7. customThe resulting crude product was purified by column chromatography (methanol/ethyl acetate 20-50%)

Sources & evidence

ORD record
ord-72a84a4873ad4644b2d72749fa7bd787
Source dataset
uspto-grants-2001_05
Patent number
US06235731B1

Reaction notes

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