HCID 57942291, compound → 4-chloro-N-[5-chloro-2-(2,3-dihydro-benzo[1,4]oxazine-4-carbonyl)-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamide

HRID 1898065Notes

Reaction equation

HRID 1898065 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([N:11]([C:15]2[C:16]([C:22]([N:24]3[C:29]4[CH:30]=[CH:31][CH:32]=[CH:33][C:28]=4[O:27][CH2:26][CH2:25]3)=[O:23])=[N:17][CH:18]=[C:19]([Cl:21])[CH:20]=2)COC)(=[O:10])=[O:9])=[CH:4][C:3]=1[C:34]([F:37])([F:36])[F:35]>Cl.O>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:11][C:15]2[C:16]([C:22]([N:24]3[C:29]4[CH:30]=[CH:31][CH:32]=[CH:33][C:28]=4[O:27][CH2:26][CH2:25]3)=[O:23])=[N:17][CH:18]=[C:19]([Cl:21])[CH:20]=2)(=[O:9])=[O:10])=[CH:4][C:3]=1[C:34]([F:36])([F:37])[F:35]

Participants

4

Reactant 1

HCID 57942291HCID 57942291, compound

Product 1

HCID 441771854-chloro-N-[5-chloro-2-(2,3-dihydro-benzo[1,4]oxazine-4-carbonyl)-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamideYield 58.5%

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidSolventHCID 962WaterSolvent

Procedure

A solution of 4-chloro-N-[5-chloro-2-(2,3-dihydro-benzo[1,4]oxazine-4-carbonyl)-pyridin-3-yl]-N-methoxymethyl-3-trifluoromethyl-benzenesulfonamide (50 mg) in 3 mL HCl (4 M in dioxane) and water (1 mL) was refluxed for 2 h. Upon cooling to room temperature, the mixture was concentrated and the residue was purified via preparative TLC (50% EtOAc in hexane) to afford 4-chloro-N-[5-chloro-2-(2,3-dihydro-benzo[1,4]oxazine-4-carbonyl)-pyridin-3-yl]-3-trifluoromethyl-benzenesulfonamide (27.0 mg) as an off white solid. MS m/z: 532.2 (M+H).

Workup

  1. concentrationthe mixture was concentrated
  2. customthe residue was purified via preparative TLC (50% EtOAc in hexane)

Sources & evidence

ORD record
ord-5be2b3c132f6414195f4f19bc0166f24
Source dataset
uspto-grants-2013_08
Patent number
US08519135B2

Reaction notes

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