Water → 7-Chloro-9-(4-{[4-(trifluoromethyl)pyridin-2-yl]oxy}phenyl)-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

HRID 2035811Notes

Reaction equation

[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2[CH:14]=[CH:13][C:12]([O:15][C:16]3[CH:21]=[C:20]([C:22]([F:25])([F:24])[F:23])[CH:19]=[CH:18][N:17]=3)=[CH:11][CH:10]=2)[C:5]([NH2:8])=[N:6][CH:7]=1.[H-].[Na+].Cl[CH2:29][CH2:30][S:31](Cl)(=[O:33])=[O:32].O>C1COCC1>[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2[CH:10]=[CH:11][C:12]([O:15][C:16]3[CH:21]=[C:20]([C:22]([F:23])([F:24])[F:25])[CH:19]=[CH:18][N:17]=3)=[CH:13][CH:14]=2)[C:5]2[N:6]([CH:7]=1)[CH2:29][CH2:30][S:31](=[O:33])(=[O:32])[N:8]=2

Participants

Conditions

Temperature: 80 °C

Procedure

5-Chloro-3-(4-(4-(trifluoromethyl)pyridin-2-yloxy)phenyl)pyridin-2-amine (470 mg) was added to a mixture of NaH (60%, 257 mg) and 2-chloroethanesulfonyl chloride (628 mg) in THF (dry) (10 mL) at room temperature. The mixture was stirred at room temperature overnight and 80° C. for 3 hr. Water was added and the mixture was concentrated in vacuo. The residue was washed with IPE to give the title compound (502 mg) as a yellow solid. The solid was crystallized from CH3CN-IPE to give a pale yellow solid (1st crop impure, 2nd crop (254 mg)). The 1st crop was purified by column chromatography (NH silica gel, eluted with MeOH in EtOAc) to give the title compound (263 mg) as a white solid.

Workup

concentrationthe mixture was concentrated in vacuo
washThe residue was washed with IPE

Sources & evidence

ORD record: ord-fbe1b2bc60e441d38c831672da34934e
Source dataset: uspto-grants-2013_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08575154B2

Reaction notes

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