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Benzenesulfonyl chloride → N-{3-[4-Hydroxy-1-(3-methylbutyl)-2-oxo-1,2-dihydro-1,8-naphthyridin-3-yl]-1,1-dioxido-4H-1,2,4-benzothiadiazin-7-yl}benzenesulfonamide

HRID 601376
Notes
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Reaction equation

HRID 601376 reaction equation
[NH2:1][C:2]1[CH:30]=[CH:29][C:5]2[NH:6][C:7]([C:12]3[C:13](=[O:28])[N:14]([CH2:23][CH2:24][CH:25]([CH3:27])[CH3:26])[C:15]4[C:20]([C:21]=3[OH:22])=[CH:19][CH:18]=[CH:17][N:16]=4)=[N:8][S:9](=[O:11])(=[O:10])[C:4]=2[CH:3]=1.[C:31]1([S:37](Cl)(=[O:39])=[O:38])[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1>N1C=CC=CC=1.C(OCC)(=O)C>[OH:22][C:21]1[C:20]2[C:15](=[N:16][CH:17]=[CH:18][CH:19]=2)[N:14]([CH2:23][CH2:24][CH:25]([CH3:27])[CH3:26])[C:13](=[O:28])[C:12]=1[C:7]1[NH:6][C:5]2[CH:29]=[CH:30][C:2]([NH:1][S:37]([C:31]3[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=3)(=[O:39])=[O:38])=[CH:3][C:4]=2[S:9](=[O:11])(=[O:10])[N:8]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 7369Benzenesulfonyl chlorideHCID 1354307103-(7-Amino-1,1-dioxido-4H-1,2,4-benzothiadiazin-3-yl)-4-hydroxy-1-(3-methylbutyl)-1,8-naphthyridin-2(1H)-one

Product 1

HCID 135541387N-{3-[4-Hydroxy-1-(3-methylbutyl)-2-oxo-1,2-dihydro-1,8-naphthyridin-3-yl]-1,1-dioxido-4H-1,2,4-benzothiadiazin-7-yl}benzenesulfonamideYield 69.7%

Reagents, catalysts & solvents 2

HCID 1049Pyridine
Solvent
HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
100 °C

Procedure

To the product of Example 205 (0.020 g, 0.047 mmol) in pyridine (0.2 mL) was added benzenesulfonyl chloride (0.0099 g, 0.0072 mL, 0.056 mmol). The reaction mixture was heated in a microwave reactor at 100° C. for 35 minutes. The reaction was cooled to 25° C., diluted with ethyl acetate (40 mL), washed with 1 N hydrochloric acid, water, and brine. The organic layer was dried over magnesium sulfate, filtered and concentrated. The residue was chromatographed on silica gel eluting with 99:1 dichloromethane:methanol to give the title compound (18.6 mg, 69%). 1H NMR (300 MHz, DMSO-d6) δ 0.97 (d, J=6.25 Hz, 6 H) 1.56 (m, 2 H) 1.68 (m, 1 H) 4.46 (m, 2 H) 7.47 (m, 3 H) 7.61 (m, 4 H) 7.80 (d, J=6.99 Hz, 2 H) 8.54 (dd, J=7.91, 1.65 Hz, 1 H) 8.87 (dd, J=4.23, 1.29 Hz, 1 H) 10.85 (s, 1 H) 14.08 (br s, 1 H). MS (ESI−) m/z 566 (M−H)−.

Workup

  1. temperatureThe reaction was cooled to 25° C.
  2. washwashed with 1 N hydrochloric acid, water, and brine
  3. dry with materialThe organic layer was dried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue was chromatographed on silica gel eluting with 99:1 dichloromethane

Sources & evidence

ORD record
ord-9b3fdeb7b34e48568a04de9795583875
Source dataset
uspto-grants-2011_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07902203B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes