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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2241441Generated: October 25, 2026

4-(4-Fluorophenyl)-3-oxo-3,4-dihydropyrazine-2-carboxylic acid → N-(3-fluoro-4-(3-(8-methyl-8-azabicyclo[3.2.1]octan-3-ylamino)-1H-pyrazolo[3,4-b]pyridin-4-yloxy)phenyl)-4-(4-fluorophenyl)-3-oxo-3,4-dihydropyrazine-2-carboxamide

https://huagongshe.com/reaction/2241441

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-(4-Fluorophenyl)-3-oxo-3,4-dihydropyrazine-2-carboxylic acidHCID 67349489—
Reactant4-(4-amino-2-fluorophenoxy)-1-(4-methoxybenzyl)-N-(8-methyl-8-azabicyclo[3.2.1]octan-3-yl)-1H-pyrazolo[3,4-b]pyridin-3-amineHCID 68516411—
ProductN-(3-fluoro-4-(3-(8-methyl-8-azabicyclo[3.2.1]octan-3-ylamino)-1H-pyrazolo[3,4-b]pyridin-4-yloxy)phenyl)-4-(4-fluorophenyl)-3-oxo-3,4-dihydropyrazine-2-carboxamideHCID 5930430818%

Reaction Steps

Prepared by a 2-step process from 4-(4-amino-2-fluorophenoxy)-1-(4-methoxybenzyl)-N-(8-methyl-8-azabicyclo[3.2.1]octan-3-yl)-1H-pyrazolo[3,4-b]pyridin-3-amine (prepared as described in Example 101, Step A except using 8-methyl-8-azabicyclo[3.2.1]octan-3-amine) and 4-(4-fluorophenyl)-3-oxo-3,4-dihydropyrazine-2-carboxylic acid (Example 125, Step E) according to the procedure of Example 101, Step B. The crude was rinsed with Et2O to afford 7 mg (18%) of the desired product. The desired product was treated with 2N HCl (Et2O solution) in a solution of MeOH and EtOAc to afford HCl salt compound. LRMS (ESIpos) m/e 599.2 (M+1). 1H-NMR (400 MHz, CD3OD) δ 8.36 (m, 1H), 8.14 (d, 1H), 7.94 (m, 1H), 7.80 (m, 1H), 7.60 (m, 4H), 7.35 (t, 2H), 6.54 (d, 1H), 4.07 (m, 1H), 3.93 (m, 2H), 2.81 (s, 3H), 2.35-2.58 (m, 8H); 19F NMR (376 MHz, CD3OD) δ −113.5, −129.6.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07723330B2
Source datasetuspto-grants-2010_05
ORD IDord-09bdbc19548b44a08c7b978ca98d44e4
Source noteuspto-grants-2010_05