3-Cyano-N-(2,4-dimethoxybenzyl)-4-{[3-pyridazin-4-yl-4'-(trifluoromethyl)biphenyl-4-yl]oxy}-N-1,2,4-thiadiazol-5-ylbenzenesulfonamide → 3-Cyano-4-{[3-pyridazin-4-yl-4'-(trifluoromethyl)biphenyl-4-yl]oxy}-N-1,2,4-thiadiazol-5-ylbenzenesulfonamide

HRID 1619590Notes

Reaction equation

HRID 1619590 reaction equation
[C:1]([C:3]1[CH:4]=[C:5]([S:32]([N:35](CC2C=CC(OC)=CC=2OC)[C:36]2[S:40][N:39]=[CH:38][N:37]=2)(=[O:34])=[O:33])[CH:6]=[CH:7][C:8]=1[O:9][C:10]1[CH:15]=[CH:14][C:13]([C:16]2[CH:21]=[CH:20][C:19]([C:22]([F:25])([F:24])[F:23])=[CH:18][CH:17]=2)=[CH:12][C:11]=1[C:26]1[CH:31]=[CH:30][N:29]=[N:28][CH:27]=1)#[N:2]>Cl.O1CCOCC1>[C:1]([C:3]1[CH:4]=[C:5]([S:32]([NH:35][C:36]2[S:40][N:39]=[CH:38][N:37]=2)(=[O:33])=[O:34])[CH:6]=[CH:7][C:8]=1[O:9][C:10]1[CH:15]=[CH:14][C:13]([C:16]2[CH:17]=[CH:18][C:19]([C:22]([F:25])([F:23])[F:24])=[CH:20][CH:21]=2)=[CH:12][C:11]=1[C:26]1[CH:31]=[CH:30][N:29]=[N:28][CH:27]=1)#[N:2]

Participants

4

Reactant 1

HCID 580422563-Cyano-N-(2,4-dimethoxybenzyl)-4-{[3-pyridazin-4-yl-4'-(trifluoromethyl)biphenyl-4-yl]oxy}-N-1,2,4-thiadiazol-5-ylbenzenesulfonamide

Product 1

HCID 566007883-Cyano-4-{[3-pyridazin-4-yl-4'-(trifluoromethyl)biphenyl-4-yl]oxy}-N-1,2,4-thiadiazol-5-ylbenzenesulfonamideYield 45.7%

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidSolventHCID 312751,4-DioxaneSolvent

Procedure

3-Cyano-N-(2,4-dimethoxybenzyl)-4-{[3-pyridazin-4-yl-4′-(trifluoromethyl)biphenyl-4-yl]oxy}-N-1,2,4-thiadiazol-5-ylbenzenesulfonamide (Preparation 26, 210 mg, 0.29 mmol) was dissolved a in 4M solution of hydrogen chloride in 1,4-dioxane (7 mL) and stirred at room temperature for 5 hours. A precipitate formed which was collected by filtration and purified by trituration with dichloromethane followed by silica gel column chromatography (0%-15% methanol in dichloromethane gradient elution) to afford the title compound as a solid (77 mg, yield).

Workup

  1. customA precipitate formed which
  2. filtrationwas collected by filtration
  3. custompurified by trituration with dichloromethane
  4. washfollowed by silica gel column chromatography (0%-15% methanol in dichloromethane gradient elution)

Sources & evidence

ORD record
ord-36a80d27fa5744f9a72598b6229e705a
Source dataset
uspto-grants-2014_07
Patent number
US08772293B2

Reaction notes

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