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Sodium Bicarbonate → sodium (S)-4-amino-5-((1-(3-methylbutanoyl)piperidin-3-yl)methoxy)benzo[c][1,2,6]thiadiazin-1-ide 2,2-dioxide

HRID 1483997
Notes
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Reaction equation

HRID 1483997 reaction equation
[NH2:1][C:2]1[C:3]2[C:13]([O:14][CH2:15][C@H:16]3[CH2:21][CH2:20][CH2:19][N:18]([C:22](=[O:27])[CH2:23][CH:24]([CH3:26])[CH3:25])[CH2:17]3)=[CH:12][CH:11]=[CH:10][C:4]=2[NH:5][S:6](=[O:9])(=[O:8])[N:7]=1.C([O-])(O)=O.[Na+:32]>O>[NH2:1][C:2]1[C:3]2[C:13]([O:14][CH2:15][C@H:16]3[CH2:21][CH2:20][CH2:19][N:18]([C:22](=[O:27])[CH2:23][CH:24]([CH3:25])[CH3:26])[CH2:17]3)=[CH:12][CH:11]=[CH:10][C:4]=2[N-:5][S:6](=[O:8])(=[O:9])[N:7]=1.[Na+:32]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 516892Sodium BicarbonateHCID 73213585(S)-1-(3-(((4-Amino-2,2-dioxido-1H-benzo(c)(1,2,6)thiadiazin-5-yl)oxy)methyl)piperidin-1-yl)-3-methylbutan-1-one

Product 1

HCID 86714321sodium (S)-4-amino-5-((1-(3-methylbutanoyl)piperidin-3-yl)methoxy)benzo[c][1,2,6]thiadiazin-1-ide 2,2-dioxideYield 100%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a suspension of (S)-1-(3-(((4-amino-2,2-dioxido-1H-benzo[c][1,2,6]thiadiazin-5-yl)oxy)methyl)piperidin-1-yl)-3-methylbutan-1-one (2.0 g, 5.07 mmol) (Example 5) in water (25 mL), was added NaHCO3 (425 mg, 5.07 mmol). The reaction was heated to reflux until complete dissolution of solid material occurred, and then concentrated under reduced pressure. The resulting residue was dissolved in water and lyophilized to give the title compound as a beige solid (2.1 g, 100%). 1H NMR (400 MHz, DMSO-d6) δ 0.78-0.96 (m, 6H), 1.21-1.50 (m, 2H), 1.55-1.75 (m, 1H), 1.78-2.07 (m, 3H), 2.10-2.25 (m, 2H), 2.60-2.78 (m, 1H), 2.88-3.15 (m, 2H), 3.65-3.97 (m, 3H), 4.00-4.41 (m, 1H), 5.97 (t, 1H, J=8.0 Hz), 6.21 (d, 1H, J=8.8 Hz), 6.57 (br. s, 2H), 6.95 (d, 1H, J=8.0, 3.2 Hz). MS 395 (MH+—Na).

Workup

  1. temperatureThe reaction was heated
  2. temperatureto reflux until complete dissolution of solid material
  3. concentrationconcentrated under reduced pressure
  4. dissolutionThe resulting residue was dissolved in water

Sources & evidence

ORD record
ord-4b33a0b39d664a42aef4e92ee1df27e8
Source dataset
uspto-grants-2016_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09420814B2

Reaction notes

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