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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1348925Generated: October 31, 2026

2-Chloronicotinic acid → 5-Acetyl-1-(1,3-benzodioxol-5-yl)-8-{[(2-chloropyridin-3-yl)carbonyl]amino}-4,5-dihydro-1h-pyrazolo[4,3-c]quinoline-3-carboxamide

https://huagongshe.com/reaction/1348925

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Chloronicotinic acidHCID 76258—
ReactantDiisopropylethylamineHCID 81531—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant5-Acetyl-8-amino-1-(1,3-benzodioxol-5-yl)-4,5-dihydro-1h-pyrazolo[4,3-c]quinoline-3-carboxamide acetateHCID 10138855—
SolventDimethylformamideHCID 6228—
Product5-Acetyl-1-(1,3-benzodioxol-5-yl)-8-{[(2-chloropyridin-3-yl)carbonyl]amino}-4,5-dihydro-1h-pyrazolo[4,3-c]quinoline-3-carboxamideHCID 1014321519%

Reaction Steps

The title material of Example 17 (100 mg, 0.00025 mol) was dissolved in DMF (2 mL), and to the solution was added 2-Chloronicotinic acid (40 mg, 0.00025 mol), HATU (144 mg, 0.00038 mol), and DIEA (49 mg, 0.00038 mol). The reaction was blanketed with argon and stirred at room temperature for 18 hours. The solution was concentrated in vacuo, and the resulting solid were washed with water and then filtered. The product was then recrystallized from ethanol, and isolated by vacuum filtration. 25 mg. (MW=530.93, 19% yield). LC/MS m/z=531.7 (m+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07211597B2
Source datasetuspto-grants-2007_05
ORD IDord-f406e9171fef4485be4c59aa2b741cc2
Source noteuspto-grants-2007_05