Triethylsilane → DS-1971a

HRID 337928Notes

Reaction equation

HRID 337928 reaction equation
[Cl:1][C:2]1[C:3]([O:30][C@H:31]2[CH2:36][CH2:35][CH2:34][CH2:33][C@@H:32]2[C:37]2[N:41]([CH3:42])[N:40]=[CH:39][CH:38]=2)=[CH:4][C:5]([F:29])=[C:6]([S:8]([N:11](CC2C=CC(OC)=CC=2OC)[C:12]2[CH:17]=[CH:16][N:15]=[CH:14][N:13]=2)(=[O:10])=[O:9])[CH:7]=1.C([SiH](CC)CC)C>ClCCl.FC(F)(F)C(O)=O>[Cl:1][C:2]1[C:3]([O:30][C@H:31]2[CH2:36][CH2:35][CH2:34][CH2:33][C@@H:32]2[C:37]2[N:41]([CH3:42])[N:40]=[CH:39][CH:38]=2)=[CH:4][C:5]([F:29])=[C:6]([S:8]([NH:11][C:12]2[CH:17]=[CH:16][N:15]=[CH:14][N:13]=2)(=[O:10])=[O:9])[CH:7]=1

Participants

5

Reactant 2

HCID 12052TriethylsilaneHCID 89962945HCID 89962945, compound

Product 1

HCID 71711862DS-1971aYield 99.8%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 6422Trifluoroacetic acidSolvent

Procedure

To a solution of the 5-chloro-N-(2,4-dimethoxybenzyl)-2-fluoro-4-{[(1S,2R)-2-(1-methyl-1H-pyrazol-5-yl)cyclohexyl]oxy}-N-(pyrimidin-4-yl)benzenesulfonamide (0.371 g, 0.602 mmol) prepared in Example 122b and triethylsilane (0.48 mL, 3.01 mmol) in dichloromethane (6.0 mL), trifluoroacetic acid (0.60 mL) was added at room temperature, and the reaction solution was stirred for 1 hour. The reaction solution was concentrated, and the residue was purified with silica gel chromatography (ethyl acetate/methanol=6:1) to yield the title compound (0.28 g, 99%) as a colorless solid.

Workup

  1. concentrationThe reaction solution was concentrated
  2. customthe residue was purified with silica gel chromatography (ethyl acetate/methanol=6:1)

Sources & evidence

ORD record
ord-a9103572e6e8428cbda61adea388ffc7
Source dataset
uspto-grants-2014_11
Patent number
US08889741B2

Reaction notes

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