Potassium Phosphate, Tribasic → US10023592, Example 259

Participants

Role	Name	HCID	Charge
Reactant	Potassium Phosphate, Tribasic	HCID 62657	—
Reactant	3-(Cyclopropylmethoxy)-2-iodo-6-methylsulfonylpyridine	HCID 118022516	—
Reactant	6-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)furo[2,3-c]pyridin-7-one	HCID 124016990	—
Catalyst	Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)	HCID 178418228	—
Solvent	1,4-Dioxane	HCID 31275	—
Product	US10023592, Example 259	HCID 118021483	62.3%

Reaction Conditions

Temperature	70 °C

Reaction Steps

A mixture of 6-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)furo[2,3-c]pyridin-7-one (50 mg, 0.18 mmol), 3-(cyclopropylmethoxy)-2-iodo-6-methylsulfonylpyridine (53 mg, 0.15 mmol), K3PO4 (114 mg, 0.54 mmol), Pd(dppf)Cl2 (13 mg, 0.018 mmol) in dioxane (5 mL) was bubbled with nitrogen for 5 min and then stirred at 70° C. for 12 h. The reaction mixture was concentrated, treated with DCM (30 mL), washed with water (30 mL) and brine (30 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by prep-HPLC to give the title compound (35 mg, yield: 52%) as an off-white solid.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US09115114B2
Source dataset	uspto-grants-2015_08
ORD ID	ord-c39d564df8e24039aa2f0c6799d6331d
Source note	uspto-grants-2015_08