Isonicotinic Acid → N-[4-(2-Furyl)-5-(tetrahydropyran-4-ylcarbonyl)thiazol-2-yl]pyridine-4-carboxamide

https://huagongshe.com/reaction/1967823

Participants

Role	Name	HCID	Charge
Reactant	Isonicotinic Acid	HCID 5922	—
Reactant	Sodium Bicarbonate	HCID 516892	—
Reactant	1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride	HCID 2723939	—
Reactant	1-Hydroxybenzotriazole hydrate	HCID 2796029	—
Reactant	2-Amino-4-(2-furyl)-5-(tetrahydropyran-4-ylcarbonyl)thiazole	HCID 86612468	—
Solvent	Water	HCID 962	—
Solvent	Dimethylformamide	HCID 6228	—
Product	N-[4-(2-Furyl)-5-(tetrahydropyran-4-ylcarbonyl)thiazol-2-yl]pyridine-4-carboxamide	HCID 23144697	48%

Reaction Conditions

Temperature	80 °C

Reaction Steps

Compound 454 (6.95 g, 25.0 mmol) was dissolved in DMF (100 mL), and isonicotinic acid (36.9 g, 300 mmol), EDC hydrochloride (57.6 g, 300 mmol) and 1-hydroxybenzotriazole monohydrate (45.9 g, 300 mmol) were added thereto, followed by stirring at 80° C. for 6 hours. The reaction mixture was poured into a mixture of a saturated aqueous solution of sodium hydrogencarbonate (600 mL) and water (200 mL), and the precipitated solid was collected by filtration. The resulting solid was recrystallized from ethanol to afford the entitled Compound 455 (4.41 g, 48%) as a grayish white solid.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08420827B2
Source dataset	uspto-grants-2013_04
ORD ID	ord-0e46fe21ea8741be92cb0f85a1bce17b
Source note	uspto-grants-2013_04