Water → tert-butyl (1R,3R,4S)-4-((S)-3-benzyloxycarbonylamino-2-oxopyrrolidin-1-yl)-3-(hydroxymethyl)cyclohexylcarbamate

HRID 1455404Notes

Reaction equation

HRID 1455404 reaction equation
[CH2:1]([O:8][C:9]([NH:11][C@H:12]1[CH2:16][CH2:15][N:14]([C@H:17]2[CH2:23][CH2:22][C@@H:21]3[CH2:24][C@H:18]2[C:19](=[O:32])[N:20]3[C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[C:13]1=[O:33])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.O.[BH4-].[Na+]>C1COCC1>[CH2:1]([O:8][C:9]([NH:11][C@H:12]1[CH2:16][CH2:15][N:14]([C@H:17]2[CH2:23][CH2:22][C@@H:21]([NH:20][C:25](=[O:26])[O:27][C:28]([CH3:30])([CH3:31])[CH3:29])[CH2:24][C@H:18]2[CH2:19][OH:32])[C:13]1=[O:33])=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 962WaterHCID 4311764Sodium borohydrideHCID 67182479HCID 67182479, compound

Product 1

HCID 68767819tert-butyl (1R,3R,4S)-4-((S)-3-benzyloxycarbonylamino-2-oxopyrrolidin-1-yl)-3-(hydroxymethyl)cyclohexylcarbamateYield 104.1%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

(1R,2S,5R)-Tert-butyl 2-((S)-3-(benzyloxycarbonylamino)-2-oxopyrrolidin-1-yl)-7-oxo-6-aza-bicyclo[3.2.1]octane-6-carboxylate (2.0 g) was dissolved in THF (50 mL) and water (15 mL) prior to the addition of NaBH4 (827 mg). After 5 h, the reaction was quenched with saturated NaHCO3 solution and extracted with EtOAc (2×). The organic extracts were combined, dried (MgSO4), filtered, and concentrated in vacuo to afford tert-butyl (1R,3R,4S)-4-((S)-3-benzyloxycarbonylamino-2-oxopyrrolidin-1-yl)-3-(hydroxymethyl)cyclohexylcarbamate (2.1 g). MS (ES+)=462.5 (M+H)+.

Workup

  1. customthe reaction was quenched with saturated NaHCO3 solution
  2. extractionextracted with EtOAc (2×)
  3. dry with materialdried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-29752449f3e846bba7a2726d1f0d3cde
Source dataset
uspto-grants-2009_01
Patent number
US07482335B2

Reaction notes

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