8-Hydroxyquinoline → 5-Chloro-N-((1-(4-(2-oxopyrazin-1(2H)-yl)phenyl)-1H-pyrazol-4-yl)methyl)thiophene-2-carboxamide

Participants

Role	Name	HCID	Charge
Reactant	8-Hydroxyquinoline	HCID 1923	—
Reactant	Potassium Carbonate	HCID 11430	—
Reactant	5-chloro-N-((1-(4-iodophenyl)-1H-pyrazol-4-yl)methyl)thiophene-2-carboxamide	HCID 68510993	—
Reactant	HCID 178516773	HCID 178516773	—
Catalyst	Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)	HCID 24350	—
Solvent	Dimethyl Sulfoxide	HCID 679	—
Product	5-Chloro-N-((1-(4-(2-oxopyrazin-1(2H)-yl)phenyl)-1H-pyrazol-4-yl)methyl)thiophene-2-carboxamide	HCID 59260063	14.3%

Reaction Conditions

Temperature	130 °C

Reaction Steps

A mixture of 5-chloro-N-((1-(4-iodophenyl)-1H-pyrazol-4-yl)methyl)thiophene-2-carboxamide (75 mg, 0.17 mmol), 2-hydroxypyrazine (43 mg, 0.45 mmol), 8-hydroxyquinoline (15 mg, 0.10 mmol) and K2CO3 (100 mg, 0.72 mmol) in DMSO (1 mL) was degassed with Argon before being charged with CuI (19 mg, 0.10 mmol). The mixture in a sealed tube was heated at 130° C. overnight. It was then purified by HPLC to give the title compound (10 mg). MS 412.0 and 414.0 (M+H, Cl pattern).

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US07696352B2
Source dataset	uspto-grants-2010_04
ORD ID	ord-4cb227a05ec14cdaadaede7c252ab7e4
Source note	uspto-grants-2010_04