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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 970180Generated: October 26, 2026

3-Pyridinemethanamine → 3-oxo-6-pyridin-4-yl-N-(pyridin-3-ylmethyl)-2,3-dihydropyridazine-4-carboxamide

https://huagongshe.com/reaction/970180

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-PyridinemethanamineHCID 31018—
Reactant1-HydroxybenzotriazoleHCID 75771—
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—
ReactantEthyl 3-[(3-oxo-6-pyridin-4-yl-2,3-dihydropyridazine-4-carbonyl)amino]propionateHCID 10313657—
Reactant3-Oxo-6-(pyridin-4-yl)-2,3-dihydropyridazine-4-carboxylic acidHCID 12790238—
SolventDimethylformamideHCID 6228—
Product3-oxo-6-pyridin-4-yl-N-(pyridin-3-ylmethyl)-2,3-dihydropyridazine-4-carboxamideHCID 10402938—

Reaction Steps

Working as in example 13 for the preparation of ethyl 3-[(3-oxo-6-pyridin-4-yl-2,3-dihydropyridazine-4-carbonyl)amino]propionate, but starting with 0.3 g of 3-oxo-6-pyridin-4-yl-2,3-dihydropyridazine-4-carboxylic acid, 30 cm3 of N,N-dimethylformamide, 0.233 g of 1-hydroxybenzotriazole, 0.18 cm3 of 3-(aminomethyl)pyridine, 0.31 cm3 of N,N-diisopropylethylamine and 0.65 g of O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate, 0.046 g of 3-oxo-6-pyridin-4-yl-N-(pyridin-3-ylmethyl)-2,3-dihydropyridazine-4-carboxamide was obtained in the form of a yellow solid melting at 262° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07309701B2
Source datasetuspto-grants-2007_12
ORD IDord-cca35768a9794907820a3e3904d52451
Source noteuspto-grants-2007_12