Triethylamine → 5-(2-chloro-phenyl)-1-[4-(1-cyclopropanesulfonyl-1,2,3,6-tetrahydropyridin-4-yl)-phenyl]-3-[di-(trifluoromethyl)-hydroxy-methyl]-4,5-dihydro-1H-pyrazole

HRID 2208104Notes

Reaction equation

HRID 2208104 reaction equation
Cl.[Cl:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[CH:9]1[N:13]([C:14]2[CH:19]=[CH:18][C:17]([C:20]3[CH2:21][CH2:22][NH:23][CH2:24][CH:25]=3)=[CH:16][CH:15]=2)[N:12]=[C:11]([C:26]([C:32]([F:35])([F:34])[F:33])([C:28]([F:31])([F:30])[F:29])[OH:27])[CH2:10]1.[CH:36]1([S:39](Cl)(=[O:41])=[O:40])[CH2:38][CH2:37]1.C(N(CC)CC)C>ClCCl>[Cl:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[CH:9]1[N:13]([C:14]2[CH:15]=[CH:16][C:17]([C:20]3[CH2:21][CH2:22][N:23]([S:39]([CH:36]4[CH2:38][CH2:37]4)(=[O:41])=[O:40])[CH2:24][CH:25]=3)=[CH:18][CH:19]=2)[N:12]=[C:11]([C:26]([C:32]([F:35])([F:33])[F:34])([C:28]([F:29])([F:30])[F:31])[OH:27])[CH2:10]1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 2760919Cyclopropanesulfonyl chlorideHCID 1184320255-(2-chloro-phenyl)-1-[4-(1,2,3,6-tetrahydropyridin-4-yl)-phenyl]-3-[di-(trifluoromethyl)-hydroxy-methyl]-4,5-dihydro-1H-pyrazole hydrochloride

Product 1

HCID 1184316655-(2-chloro-phenyl)-1-[4-(1-cyclopropanesulfonyl-1,2,3,6-tetrahydropyridin-4-yl)-phenyl]-3-[di-(trifluoromethyl)-hydroxy-methyl]-4,5-dihydro-1H-pyrazoleYield 61.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

5-(2-Chloro-phenyl)-1-[4-(1,2,3,6-tetrahydropyridin-4-yl)-phenyl]-3-[di-(trifluoromethyl)-hydroxy-methyl]-4,5-dihydro-1H-pyrazole hydrochloride (20.0 mg, 0.04 mmol) prepared in Example 427, cyclopropanesulfonyl chloride (6.0 uL, 0.06 mmol), and triethylamine (26.0 uL, 0.19 mmol) were added to dichloromethane (1.0 mL). The reaction mixture was stirred at room temperature for 16 hours, washed with distilled water and brine, dried on anhydrous magnesium sulfate, and then concentrated under reduced pressure to give a yellow liquid residue. The resulting residue was purified by silica gel column chromatography (eluent: ethyl acetate/n-hexane=1/1) to give 15.0 mg of the titled compound as a yellow liquid.

Workup

  1. washwashed with distilled water and brine
  2. dry with materialdried on anhydrous magnesium sulfate
  3. concentrationconcentrated under reduced pressure
  4. customto give a yellow liquid residue
  5. customThe resulting residue was purified by silica gel column chromatography (eluent: ethyl acetate/n-hexane=1/1)

Sources & evidence

ORD record
ord-eace7920aceb4b86a202d3dacd2c1a3b
Source dataset
uspto-grants-2016_06
Patent number
US09376420B2

Reaction notes

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