Trifluoroacetic acid → 2,5-Difluoro-4-{[(1S*,2R*)-2-phenylcyclohexyl]oxy}-N-(1,2,4-thiadiazol-5-yl)benzenesulfonamide

HRID 337706Notes

Reaction equation

HRID 337706 reaction equation
COC1C=C(OC)C=CC=1C[N:6]([C:31]1[S:35][N:34]=[CH:33][N:32]=1)[S:7]([C:10]1[CH:15]=[C:14]([F:16])[C:13]([O:17][C@H:18]2[CH2:23][CH2:22][CH2:21][CH2:20][C@@H:19]2[C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)=[CH:12][C:11]=1[F:30])(=[O:9])=[O:8].C([SiH](CC)CC)C.FC(F)(F)C(O)=O>ClCCl>[F:30][C:11]1[CH:12]=[C:13]([O:17][C@H:18]2[CH2:23][CH2:22][CH2:21][CH2:20][C@@H:19]2[C:24]2[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=2)[C:14]([F:16])=[CH:15][C:10]=1[S:7]([NH:6][C:31]1[S:35][N:34]=[CH:33][N:32]=1)(=[O:9])=[O:8]

Participants

5

Reactant 3

HCID 6422Trifluoroacetic acidHCID 12052TriethylsilaneHCID 89963429N-(2,4-dimethoxybenzyl)-2,5-difluoro-4-{[(1S*,2R*)-2-phenylcyclohexyl]oxy}-N-(1,2,4-thiadiazol-5-yl)benzenesulfonamide

Product 1

HCID 899628262,5-Difluoro-4-{[(1S*,2R*)-2-phenylcyclohexyl]oxy}-N-(1,2,4-thiadiazol-5-yl)benzenesulfonamideYield 74.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

The reaction and aftertreatment were conducted in the same manner as in Example 1b by using the N-(2,4-dimethoxybenzyl)-2,5-difluoro-4-{[(1S,2R)-2-phenylcyclohexyl]oxy}-N-(1,2,4-thiadiazol-5-yl)benzenesulfonamide (55.7 mg, 0.0926 mmol) prepared in Example 2a, triethylsilane (0.10 mL), trifluoroacetic acid (1.0 mL) and dichloromethane (1.0 mL), to yield the title compound (31.0 mg, 74%) as a colorless solid.

Workup

  1. customThe reaction and aftertreatment

Sources & evidence

ORD record
ord-245c95cd93d14fcebf480a4dea660c86
Source dataset
uspto-grants-2014_11
Patent number
US08889741B2

Reaction notes

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