2,6-difluoro-N-(3-methoxy-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridin-5-yl)-3-(propylsulfonamido)benzamide → 2,6-Difluoro-N-(3-Methoxy-2h-Pyrazolo[3,4-B]pyridin-5-Yl)-3-[(Propylsulfonyl)amino]benzamide

HRID 1943893Notes

Reaction equation

HRID 1943893 reaction equation
[F:1][C:2]1[C:30]([NH:31][S:32]([CH2:35][CH2:36][CH3:37])(=[O:34])=[O:33])=[CH:29][CH:28]=[C:27]([F:38])[C:3]=1[C:4]([NH:6][C:7]1[CH:8]=[C:9]2[C:15]([O:16][CH3:17])=[N:14][N:13](CC3C=CC(OC)=CC=3)[C:10]2=[N:11][CH:12]=1)=[O:5]>C(O)(C(F)(F)F)=O>[F:1][C:2]1[C:30]([NH:31][S:32]([CH2:35][CH2:36][CH3:37])(=[O:34])=[O:33])=[CH:29][CH:28]=[C:27]([F:38])[C:3]=1[C:4]([NH:6][C:7]1[CH:8]=[C:9]2[C:15]([O:16][CH3:17])=[N:14][NH:13][C:10]2=[N:11][CH:12]=1)=[O:5]

Participants

3

Reactant 1

HCID 670888582,6-difluoro-N-(3-methoxy-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridin-5-yl)-3-(propylsulfonamido)benzamide

Product 1

HCID 442232062,6-Difluoro-N-(3-Methoxy-2h-Pyrazolo[3,4-B]pyridin-5-Yl)-3-[(Propylsulfonyl)amino]benzamideYield 90%

Reagents, catalysts & solvents 1

HCID 6422Trifluoroacetic acidSolvent

Procedure

2,6-Difluoro-N-(3-methoxy-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridin-5-yl)-3-(propylsulfonamido)benzamide (0.0030 g, 0.0055 mmol) was taken up in TFA (2 mL) and heated to reflux for 8 hours. The reaction mixture was concentrated and purified by column chromatography (1:1 hexane/EtOAc) to provide 2,6-difluoro-N-(3-methoxy-1H-pyrazolo[3,4-b]pyridin-5-yl)-3-(propylsulfonamido)benzamide (0.0021 g, 90%) as a solid. 1H NMR (400 MHz, (CD3)2CO) δ 8.65-8.66 (m, 2H), 7.65-7.71 (m, 1H), 7.15-7.20 (m, 1H), 4.07 (s, 3H), 3.16-3.19 (m, 2H), 1.84-1.90 (m, 2H), 1.03-1.07 (m, 3H); m/z (APCI-pos) M+1=426.1.

Workup

  1. temperatureheated
  2. temperatureto reflux for 8 hours
  3. concentrationThe reaction mixture was concentrated
  4. custompurified by column chromatography (1:1 hexane/EtOAc)

Sources & evidence

ORD record
ord-8a979b9c61c24fc49d142058884ad2b7
Source dataset
uspto-grants-2013_03
Patent number
US08394795B2

Reaction notes

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