Water → 9-(3-Fluorobiphenyl-4-yl)-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

HRID 1622804Notes

Reaction equation

Cl[CH2:2][CH2:3][S:4](Cl)(=[O:6])=[O:5].[F:8][C:9]1[CH:10]=[C:11]([C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[CH:12]=[CH:13][C:14]=1[C:15]1[C:16]([NH2:21])=[N:17][CH:18]=[CH:19][CH:20]=1.O>CN(C)C(=O)C>[F:8][C:9]1[CH:10]=[C:11]([C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=2)[CH:12]=[CH:13][C:14]=1[C:15]1[C:16]2=[N:21][S:4](=[O:6])(=[O:5])[CH2:3][CH2:2][N:17]2[CH:18]=[CH:19][CH:20]=1

Participants

Conditions

Temperature: 60 °C

Procedure

A solution of 2-chloroethanesulfonyl chloride (208.2 mg) in N,N-dimethylacetoamide (2 mL) was added dropwise to a suspension of 3-(3-fluorobiphenyl-4-yl)pyridin-2-amine (149.5 mg) in N,N-dimethylacetoamide (2 mL) and additional N,N-dimethylacetoamide (1 mL) was used to complete the addition of above solution. After being stirred at 60° C. for 3 h, the mixture was cooled to room temperature. Water (10 mL) was added dropwise to the reaction mixture and the whole was stirred at room temperature for 0.5 hr. The precipitate was collected by filtration, washed with water (10 mL) and THF (3 mL), and dried in vacuo at 60° C. to give the title compound (143 mg) as an off-white powder.

Workup

additionthe addition of above solution
temperaturethe mixture was cooled to room temperature
stirringthe whole was stirred at room temperature for 0.5 hr
filtrationThe precipitate was collected by filtration
washwashed with water (10 mL) and THF (3 mL)
customdried in vacuo at 60° C.

Sources & evidence

ORD record: ord-4a6a5e6267f444a8adc347b4d97c24ef
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08778934B2

Reaction notes

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