Triethylamine → tert-butyl [(1R,3S)-3-isopropyl-3-(4-[6-(trifluoromethyl)pyrimidin-4-yl]piperazin-1-ylcarbonyl)cyclopentyl]carbamate

HRID 270587Notes

Reaction equation

HRID 270587 reaction equation
[N:1]1([C:7]2[CH:12]=[C:11]([C:13]([F:16])([F:15])[F:14])[N:10]=[CH:9][N:8]=2)[CH2:6][CH2:5][NH:4][CH2:3][CH2:2]1.[C:17]([O:21][C:22]([NH:24][C@@H:25]1[CH2:29][CH2:28][C@:27]([CH:33]([CH3:35])[CH3:34])([C:30](O)=[O:31])[CH2:26]1)=[O:23])([CH3:20])([CH3:19])[CH3:18].F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.C(N(CC)CC)C>C(Cl)Cl>[CH:33]([C@:27]1([C:30]([N:4]2[CH2:5][CH2:6][N:1]([C:7]3[CH:12]=[C:11]([C:13]([F:16])([F:14])[F:15])[N:10]=[CH:9][N:8]=3)[CH2:2][CH2:3]2)=[O:31])[CH2:28][CH2:29][C@@H:25]([NH:24][C:22](=[O:23])[O:21][C:17]([CH3:19])([CH3:18])[CH3:20])[CH2:26]1)([CH3:35])[CH3:34]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 529877424-(Piperazin-1-yl)-6-(trifluoromethyl)pyrimidineHCID 60122293(1S,3R)-3-((Tert-butoxycarbonyl)amino)-1-isopropylcyclopentanecarboxylic acid

Product 1

HCID 59833570tert-butyl [(1R,3S)-3-isopropyl-3-(4-[6-(trifluoromethyl)pyrimidin-4-yl]piperazin-1-ylcarbonyl)cyclopentyl]carbamateYield 38.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

A solution of 4-piperazin-1-yl-6-(trifluoromethyl)pyrimidine (1.0 g, 4.31 mmol), (1S,3R)-3-[(tert-butoxycarbonyl)amino]-1-isopropylcyclopentanecarboxylic acid (1.75 g, 6.46 mmol), benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (2.86 g, 6.46 mmol), and triethylamine (1.20 mL, 8.61 mmol) in methylene chloride (10 mL) was stirred at room temperature overnight. The reaction mixture was diluted with methylene chloride, washed with brine, dried with sodium sulfate, filtered, and concentrated in vacuo. The crude residue was purified by flash column chromatography to yield the desired product (800 mg, 38.3%). LCMS calculated for C23H35F3N5O3: (M+1) 486.2; found 486.2.

Workup

  1. washwashed with brine
  2. dry with materialdried with sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe crude residue was purified by flash column chromatography

Sources & evidence

ORD record
ord-d7cdc2c8843d40889e477f0bfb354d73
Source dataset
uspto-grants-2008_11
Patent number
US07449467B2

Reaction notes

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