Hydrochloric Acid → 6-(4-amino-2,2-dioxo-1H-benzo[c][1,2,6]thiadiazin-5-yloxy)hexan-1-aminium chloride

HRID 711923Notes

Reaction equation

HRID 711923 reaction equation
[NH2:1][C:2]1[C:3]2[C:13]([O:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][NH:21]C(=O)OC(C)(C)C)=[CH:12][CH:11]=[CH:10][C:4]=2[NH:5][S:6](=[O:9])(=[O:8])[N:7]=1.[ClH:29]>O1CCOCC1>[Cl-:29].[NH2:1][C:2]1[C:3]2[C:13]([O:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][NH3+:21])=[CH:12][CH:11]=[CH:10][C:4]=2[NH:5][S:6](=[O:9])(=[O:8])[N:7]=1

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 66746882tert-butyl 6-(4-amino-2,2-dioxo-1H-benzo[c][1,2,6]thiadiazin-5-yloxy)hexylcarbamate

Product 1

HCID 667460276-(4-amino-2,2-dioxo-1H-benzo[c][1,2,6]thiadiazin-5-yloxy)hexan-1-aminium chlorideYield 62.9%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Procedure

To a solution of tert-butyl 6-(4-amino-2,2-dioxo-1H-benzo[c][1,2,6]thiadiazin-5-yloxy)hexylcarbamate (118 mg, 286 μmol) (Example 281) in dioxane (2 mL) was added con. HCl (1 mL) and the solution stirred at room temperature for 15 minutes. The solvents were removed in vacuo and the residue triturated with hot ethanol. After cooling to room temperature, the precipitated was collected, washed with hot ethanol, and dried in vacuo to give the desired product 56 mg (62.9%) as an off-white powder. 1H NMR (400 MHz, DMSO-d6) δ 1.367 (m, 4H), 1.529 (pentet, J=7 Hz, 2H), 1.795 (pentet, J=7 Hz, 2H), 2.741 (br m, 2H), 4.144 (t, J=7 Hz, 2H), 6.596 (d, J=8 Hz, 1H), 6.733 (d, J=8 Hz, 1H), 7.440 (t, J=8 Hz, 1H), 7.725 (br. s, 3H), 7.795 (br. s, 1H), 8.350 (br. s, 1H), 10.954 (s, 1H). MS 313 (MH+).

Workup

  1. customThe solvents were removed in vacuo
  2. customthe residue triturated with hot ethanol
  3. customthe precipitated was collected
  4. washwashed with hot ethanol
  5. customdried in vacuo

Sources & evidence

ORD record
ord-9b82bef085e64578ba1af4f89707b4a9
Source dataset
uspto-grants-2015_11
Patent number
US09181276B2

Reaction notes

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