Hydrochloric Acid → 2-({3-[4-hydroxy-1-(isobutylamino)-2-oxo-1,2-dihydroquinolin-3-yl]-1,1-dioxido-4H-1,2,4-benzothiadiazin-7-yl}oxy)butanamide

HRID 601353Notes

Reaction equation

HRID 601353 reaction equation
[OH:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[N:5]([NH:12][CH2:13][CH:14]([CH3:16])[CH3:15])[C:4](=[O:17])[C:3]=1[C:18]1[NH:23][C:22]2[CH:24]=[CH:25][C:26]([OH:28])=[CH:27][C:21]=2[S:20](=[O:30])(=[O:29])[N:19]=1.Cl[CH:32]([CH2:36][CH3:37])[C:33]([NH2:35])=[O:34].C(=O)([O-])[O-].[Cs+].[Cs+].Cl>CN(C)C=O.[I-].C([N+](CCCC)(CCCC)CCCC)CCC>[OH:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[N:5]([NH:12][CH2:13][CH:14]([CH3:15])[CH3:16])[C:4](=[O:17])[C:3]=1[C:18]1[NH:23][C:22]2[CH:24]=[CH:25][C:26]([O:28][CH:32]([CH2:36][CH3:37])[C:33]([NH2:35])=[O:34])=[CH:27][C:21]=2[S:20](=[O:29])(=[O:30])[N:19]=1

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 10796Cesium carbonateHCID 3449692-ChlorobutyramideHCID 1363584044-hydroxy-3-(7-hydroxy-1,1-dioxido-4H-1,2,4-benzothiadiazin-3-yl)-1-(isobutylamino)quinolin-2(1H)-one

Product 1

HCID 1363584952-({3-[4-hydroxy-1-(isobutylamino)-2-oxo-1,2-dihydroquinolin-3-yl]-1,1-dioxido-4H-1,2,4-benzothiadiazin-7-yl}oxy)butanamideYield 100.1%

Reagents, catalysts & solvents 2

HCID 67553Tetrabutylammonium IodideCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
25 °C

Procedure

To a solution of the product of Example 321C (20 mg, 0.0467 mmol) in N,N-dimethylformamide (2 mL) was added 2-chlorobutyramide (8.5 mg, 0.070 mmol), tetra-n-butylammonium iodide (1.7 mg, 0.0047 mmol) and cesium carbonate (61 mg, 0.187 mmol). The mixture was stirred at 25° C. for 18 hours, then heated to 80° C. for 3 hours. After cooling to 25° C., 1N aqueous hydrochloric acid (10 mL) was added and the mixture extracted with ethyl acetate (10 mL). The resulting organic layer was separated and dried over magnesium sulfate, filtered, and concentrated under reduced pressure to provide the title compound (24 mg, 100%). The sodium salt of the title compound was prepared according to the procedure of Example 1D. MS (ESI−) m/z 512 (M−Na)−. 1H NMR (300 MHz, DMSO-d6) δ 0.99 (t, J=7.7 Hz, 3H), 1.03 (d, J=6.3 Hz, 6H), 1.83 (m, 3H), 2.50 (m, 1H), 2.75 (m, 1H), 4.46 (m, 1H), 5.94 (m, 1H), 7.08 (m, 2H), 7.17 (m, 1H), 7.23 (m, 1H), 7.32 (s, 1H), 7.58 (m, 2H), 7.64 (s, 1H), 8.07 (d, J=7.8 Hz, 1H), 16.23 (bs, 1H).

Workup

  1. temperatureheated to 80° C. for 3 hours
  2. temperatureAfter cooling to 25° C.
  3. extractionthe mixture extracted with ethyl acetate (10 mL)
  4. customThe resulting organic layer was separated
  5. dry with materialdried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-43a7d4795e4f45c2aa2c3bea24c5cae3
Source dataset
uspto-grants-2011_03
Patent number
US07902203B2

Reaction notes

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