Dimethyl Sulfate → HCID 77275866, compound

HRID 1807165Notes

Reaction equation

HRID 1807165 reaction equation
[NH:1]1[C:5]([C:6]2[CH:7]=[C:8]([NH:12][C:13]([CH:15]3[CH:19]([C:20]4[CH:25]=[CH:24][CH:23]=[C:22]([Cl:26])[C:21]=4[CH3:27])[C:18]([C:30]4[CH:35]=[CH:34][C:33]([Cl:36])=[CH:32][C:31]=4[F:37])([C:28]#[N:29])[CH:17]([CH2:38][C:39]([CH3:42])([CH3:41])[CH3:40])[NH:16]3)=[O:14])[CH:9]=[CH:10][CH:11]=2)=[N:4][N:3]=[N:2]1.[C:43](=O)(O)[O-].[Na+].S(OC)(OC)(=O)=O>CC(C)=O>[CH3:43][N:4]1[C:5]([C:6]2[CH:7]=[C:8]([NH:12][C:13]([CH:15]3[CH:19]([C:20]4[CH:25]=[CH:24][CH:23]=[C:22]([Cl:26])[C:21]=4[CH3:27])[C:18]([C:30]4[CH:35]=[CH:34][C:33]([Cl:36])=[CH:32][C:31]=4[F:37])([C:28]#[N:29])[CH:17]([CH2:38][C:39]([CH3:42])([CH3:41])[CH3:40])[NH:16]3)=[O:14])[CH:9]=[CH:10][CH:11]=2)=[N:1][N:2]=[N:3]1

Participants

5

Reactant 3

HCID 6497Dimethyl SulfateHCID 516892Sodium BicarbonateHCID 178427902HCID 178427902, compound

Product 1

HCID 77275866HCID 77275866, compoundYield 11.2%

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

To a stirred solution of rac (2R,3R,4R,5S)-4-(4-Chloro-2-fluoro-phenyl)-3-(3-chloro-2-methyl-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carboxylic acid [3-(1H-tetrazol-5-yl)-phenyl]-amide (44 mg, 0.172 mmol) in acetone (5 mL), sodium bicarbonate (84 mg, 1 mmol) and dimethyl sulfate (30 uL, 0.22 mmol) was added and the mixture was stirred at rt for 5 hrs. The solvent was removed and the residue was suspended in 3 mL of methylene chloride. The mixture was filtered and the filtrate was loaded on a silica gel column. Eluting with 35-70% EtOAc/Hexanes on an ISCO machine gave the desired product (12 mg) and the other regioisomer (26 mg).

Workup

  1. customThe solvent was removed
  2. filtrationThe mixture was filtered
  3. washEluting with 35-70% EtOAc/Hexanes on an ISCO machine

Sources & evidence

ORD record
ord-7e9f8bbd0e034a6091e6e7a1d72ad5e9
Source dataset
uspto-grants-2013_01
Patent number
US08354444B2

Reaction notes

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