Water → benzyl (3R,4R)-1-((R)-1-(6-chloropyridin-3-yl)-2,2,2-trifluoroethyl)-4-hydroxypyrrolidin-3-ylcarbamate

HRID 338962Notes

Reaction equation

HRID 338962 reaction equation
FC(F)(F)S(O[C@@H:7]([C:12]1[CH:13]=[N:14][C:15]([Cl:18])=[CH:16][CH:17]=1)[C:8]([F:11])([F:10])[F:9])(=O)=O.[OH:21][C@@H:22]1[CH2:26][NH:25][CH2:24][C@H:23]1[NH:27][C:28](=[O:37])[O:29][CH2:30][C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1.C([O-])([O-])=O.[K+].[K+].O>C1COCC1.C(OCC)(=O)C>[Cl:18][C:15]1[N:14]=[CH:13][C:12]([C@@H:7]([N:25]2[CH2:26][C@@H:22]([OH:21])[C@H:23]([NH:27][C:28](=[O:37])[O:29][CH2:30][C:31]3[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=3)[CH2:24]2)[C:8]([F:11])([F:10])[F:9])=[CH:17][CH:16]=1

Participants

7

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 68219095Benzyl N-[(3R,4R)-4-hydroxypyrrolidin-3-YL]carbamateHCID 86707412(S)-1-(6-chloropyridin-3-yl)-2,2,2-trifluoroethyl trifluoromethanesulfonate

Product 1

HCID 86707479benzyl (3R,4R)-1-((R)-1-(6-chloropyridin-3-yl)-2,2,2-trifluoroethyl)-4-hydroxypyrrolidin-3-ylcarbamateYield 59.2%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

A solution of (S)-1-(6-chloropyridin-3-yl)-2,2,2-trifluoroethyl trifluoromethanesulfonate (2.50 g, 7.28 mmol), benzyl (3R,4R)-4-hydroxypyrrolidin-3-ylcarbamate (2.41 g, 10.2 mmol) and K2CO3 (1.51 g, 10.9 mmol) in THF (40 mL) was stirred at 56° C. for 12 hours. Water (20 mL) and ethyl acetate (40 mL) were added. The organic layer was separated, washed with brine, dried (sodium sulfate), filtered and concentrated under reduced pressure. The residue was purified by flash chromatography on silica gel (20:1 ethyl acetate/MeOH) to give benzyl (3R,4R)-1-((R)-1-(6-chloropyridin-3-yl)-2,2,2-trifluoroethyl)-4-hydroxypyrrolidin-3-ylcarbamate (1.85 g, 59.2%) as a solid.

Workup

  1. customThe organic layer was separated
  2. washwashed with brine
  3. dry with materialdried (sodium sulfate)
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by flash chromatography on silica gel (20:1 ethyl acetate/MeOH)

Sources & evidence

ORD record
ord-132b713e794b482b9b1bc39b7666ad3a
Source dataset
uspto-grants-2014_11
Patent number
US08889704B2

Reaction notes

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