1,4-Dioxane → (1R,3S)-3-isopropyl-3-(4-[6-methyl-4-(trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentanamine

HRID 270589Notes

Reaction equation

HRID 270589 reaction equation
[CH:1]([C@:4]1([C:17]([N:19]2[CH2:24][CH2:23][N:22]([C:25]3[CH:30]=[C:29]([C:31]([F:34])([F:33])[F:32])[CH:28]=[C:27]([CH3:35])[N:26]=3)[CH2:21][CH2:20]2)=[O:18])[CH2:8][CH2:7][C@@H:6]([NH:9]C(=O)OC(C)(C)C)[CH2:5]1)([CH3:3])[CH3:2].O1CCOCC1>Cl.C(Cl)Cl>[CH:1]([C@:4]1([C:17]([N:19]2[CH2:20][CH2:21][N:22]([C:25]3[CH:30]=[C:29]([C:31]([F:34])([F:32])[F:33])[CH:28]=[C:27]([CH3:35])[N:26]=3)[CH2:23][CH2:24]2)=[O:18])[CH2:8][CH2:7][C@@H:6]([NH2:9])[CH2:5]1)([CH3:3])[CH3:2]

Participants

5

Reactant 2

HCID 312751,4-DioxaneHCID 59833563tert-Butyl [(1R,3S)-3-Isopropyl-3-(4-{6-methyl-4-(trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentyl]carbamate

Product 1

HCID 59833585(1R,3S)-3-isopropyl-3-(4-[6-methyl-4-(trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentanamineYield 94%

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidSolventHCID 6344DichloromethaneSolvent

Procedure

A solution of tert-butyl [(1R,3S)-3-isopropyl-3-(4-[6-methyl-4-(trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentyl]carbamate (200 mg, 1.65 mmol) dissolved in 4 M of HCl in 1,4-dioxane (10 mL, 40 mmol) was stirred at room temperature for 1 h. The reaction was diluted with methylene chloride, washed with saturated NaHCO3 solution, dried with sodium sulfate, filtered, and concentrated in vacuo to provide the desired product (0.15 g, 94%). LCMS calculated for C20H30F3N4O: (M+1) 399.2; found 399.2.

Workup

  1. washwashed with saturated NaHCO3 solution
  2. dry with materialdried with sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-a42ccc6e55964647928b65848bf74793
Source dataset
uspto-grants-2008_11
Patent number
US07449467B2

Reaction notes

Loading…