2,6-Dichlorobenzenesulfonylchloride → 2,6-dichloro-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 601393

Reaction equation

HRID 601393 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.[Cl:31][C:32]1[CH:37]=[CH:36][CH:35]=[C:34]([Cl:38])[C:33]=1[S:39](Cl)(=[O:41])=[O:40]>N1C=CC=CC=1>[Cl:31][C:32]1[CH:37]=[CH:36][CH:35]=[C:34]([Cl:38])[C:33]=1[S:39]([NH: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)(=[O:41])=[O:40]

Participants

4

Reactant 2

HCID 5221832,6-DichlorobenzenesulfonylchlorideHCID 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 1363585122,6-dichloro-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}benzenesulfonamideYield 16%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Conditions

Temperature
120 °C

Procedure

To the product of Example 205 (21.5 g, 0.05 mmol) in pyridine (1 mL) was added 2,6-dichlorobenzenesulfonyl chloride (49, 0.2 mmol). The reaction mixture was heated in a microwave reactor at 120° C. for 120 minutes. The reaction was cooled to 25° C. and concentrated under reduced pressure. The residue was triturated with water (1 mL), filtered, and washed with 1:1 hexane:ethyl acetat. The crude product was chromatographed on silica gel eluting with 399:1 dichloromethane:methanol to give the title compound (5 mg, 16%). 1H NMR (300 MHz, DMSO-d6) δ 0.97 (d, J=6.62 Hz, 6 H) 1.54 (m, 2 H) 1.67 (m, 1 H) 4.46 (m, 2 H) 7.47 (m, 2 H) 7.58 (m, 2 H) 7.68 (m, 3 H) 8.54 (dd, J=7.72, 1.84 Hz, 1 H) 8.88 (dd, J=4.78, 1.84 Hz, 1 H) 11.43 (s, 1 H) 14.02 (s, 1 H). MS (ESI−) m/z 634 (M−H)−.

Workup

  1. temperatureThe reaction was cooled to 25° C.
  2. concentrationconcentrated under reduced pressure
  3. customThe residue was triturated with water (1 mL)
  4. filtrationfiltered
  5. washwashed with 1:1 hexane
  6. customThe crude product was chromatographed on silica gel eluting with 399:1 dichloromethane

Sources & evidence

ORD record
ord-0e4bfcfaa9984c3c844f4f93a9938003
Source dataset
uspto-grants-2011_03
Patent number
US07902203B2

Linked notes

Loading…