Ethanesulfonylchloride, 2-chloro- → 9-[6-(Cyclohexyloxy)pyridin-3-yl]-7-fluoro-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

HRID 1622688Notes

Reaction equation

HRID 1622688 reaction equation
[H-].[Na+].Cl[CH2:4][CH2:5][S:6](Cl)(=[O:8])=[O:7].[CH:10]1([O:16][C:17]2[N:22]=[CH:21][C:20]([C:23]3[C:24]([NH2:30])=[N:25][CH:26]=[C:27]([F:29])[CH:28]=3)=[CH:19][CH:18]=2)[CH2:15][CH2:14][CH2:13][CH2:12][CH2:11]1>C1COCC1>[CH:10]1([O:16][C:17]2[N:22]=[CH:21][C:20]([C:23]3[C:24]4=[N:30][S:6](=[O:8])(=[O:7])[CH2:5][CH2:4][N:25]4[CH:26]=[C:27]([F:29])[CH:28]=3)=[CH:19][CH:18]=2)[CH2:11][CH2:12][CH2:13][CH2:14][CH2:15]1

Participants

5

Reactant 3

HCID 15385Ethanesulfonylchloride, 2-chloro-HCID 24758Sodium hydrideHCID 667488416'-(Cyclohexyloxy)-5-fluoro-3,3'-bipyridin-2-amine

Product 1

HCID 667477129-[6-(Cyclohexyloxy)pyridin-3-yl]-7-fluoro-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

To a suspension of NaH (60%, 195 mg) in THF (dry) (10 mL) was added 2-chloroethanesulfonyl chloride (0.307 mL) at 0° C. and the mixture was stirred for 10 min at the same temperature. A solution of 6′-(cyclohexyloxy)-5-fluoro-3,3′-bipyridin-2-amine (280 mg) in THF (dry) (10 mL) was added at 0° C. and the mixture was stirred at room temperature under nitrogen for 1 day. The mixture was quenched with water at 0° C. carefully. EtOAc and THF were added and the organic layer was separated, washed with brine, dried over anhydrous sodium sulfate and concentrated in vacuo. The residue was crystallized from MeCN-THF/IPE to give the title compound (81.1 mg) as colorless crystals.

Workup

  1. stirringthe mixture was stirred at room temperature under nitrogen for 1 day
  2. customThe mixture was quenched with water at 0° C. carefully
  3. additionEtOAc and THF were added
  4. customthe organic layer was separated
  5. washwashed with brine
  6. dry with materialdried over anhydrous sodium sulfate
  7. concentrationconcentrated in vacuo
  8. customThe residue was crystallized from MeCN-THF/IPE

Sources & evidence

ORD record
ord-c3c6d1c1b7004a4bb8a42235cac3a13e
Source dataset
uspto-grants-2014_07
Patent number
US08778934B2

Reaction notes

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