Methyl chloroformate → HCID 66662384, compound

HRID 557926Notes

Reaction equation

HRID 557926 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([C:11]([N:13]3[CH2:17][C@@H:16]([C:18]4[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=4)[C@H:15]([C:24](O)=[O:25])[CH2:14]3)=[O:12])[CH2:10][CH2:9]2)=[CH:4][CH:3]=1.C(N(CC)CC)C.ClC(OC)=O.[BH4-].[Na+]>C1COCC1>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([C:11]([N:13]3[CH2:17][C@@H:16]([C:18]4[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=4)[C@H:15]([CH2:24][OH:25])[CH2:14]3)=[O:12])[CH2:10][CH2:9]2)=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 6586Methyl chloroformateHCID 8471TriethylamineHCID 4311764Sodium borohydrideHCID 66661900HCID 66661900, compound

Product 1

HCID 66662384HCID 66662384, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Conditions

Temperature
-15 °C

Procedure

To a solution of (3S,4R)-1-{[1-(4-chlorophenyl)cyclopropyl]carbonyl}-4-phenylpyrrolidine-3-carboxylic acid (80 mg, 0.0002 mol, example 355) in tetrahydrofuran (2 mL, 0.02 mol) were added triethylamine (0.0316 mL, 0.000227 mol) and methyl chloroformate (20.0 μL, 0.000260 mol) at −15° C. The mixture was stirred at −15° C. for 20 minutes. To the above mixture was added sodium borohydride (16.4 mg, 0.000433 mol) in THF and the resulting mixture was stirred at 0° C. for 1 h. The reaction mixture was quenched by water and then was extracted with AcOEt. The organic layer was dried over MgSO4, and concentrated to afford the product. The product was purified with Combiflash eluting with 60% AcOEt in hexanes. LCMS: m/z 356.4 (M+H)+

Workup

  1. stirringthe resulting mixture was stirred at 0° C. for 1 h
  2. customThe reaction mixture was quenched by water
  3. extractionwas extracted with AcOEt
  4. dry with materialThe organic layer was dried over MgSO4
  5. concentrationconcentrated
  6. customto afford the product
  7. customThe product was purified with Combiflash
  8. washeluting with 60% AcOEt in hexanes

Sources & evidence

ORD record
ord-2f75c1c0461c4b81855a36e1e55f1da6
Source dataset
uspto-grants-2011_11
Patent number
US08058288B2

Reaction notes

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