Potassium Phosphate, Tribasic → {4-[5-({1,3-Dimethyl-1H-pyrazolo[3,4-c]pyridin-5-yl}amino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl]-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridin-3-yl}methyl Acetate

Participants

Role	Name	HCID	Charge
Reactant	Potassium Phosphate, Tribasic	HCID 62657	—
Reactant	Sodium Acetate	HCID 517045	—
Reactant	(2-(7,7-dimethyl-1-oxo-3,4,7,8-tetrahydro-1H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-2(6H)-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)methyl acetate	HCID 86684419	—
Reactant	HCID 86684586	HCID 86684586	—
Catalyst	Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)	HCID 178418228	—
Solvent	Water	HCID 962	—
Solvent	Acetonitrile	HCID 6342	—
Product	{4-[5-({1,3-Dimethyl-1H-pyrazolo[3,4-c]pyridin-5-yl}amino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl]-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridin-3-yl}methyl Acetate	HCID 86684585	33%

Reaction Steps

A 100-mL round-bottomed flask equipped with a magnetic stirrer and a reflux condenser was charged with 325f (120 mg, 0.35 mmol), {3-[(acetoxy)methyl]-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridin-4-yl}boronic acid 199e (417 mg, 1.05 mmol), Pd(dppf)Cl2 (29 mg, 0.035 mmol), K3PO4 (148.0 mg, 0.70 mmol), sodium acetate (57.4 mg, 0.70 mmol), water (0.5 mL), and acetonitrile (15 mL). After three cycles of vacuum/nitrogen flush, the mixture was heated at reflux for 1 hr. It was then cooled to room temperature and filtered. The filtrate was concentrated under reduced pressure and the resulting residue was purified by silica-gel column chromatography eluting with 30:1 dichloromethane/methanol to afford 325g as a yellow solid (70 mg, 33%). MS-ESI: [M+H]+ 620.8.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US09238655B2
Source dataset	uspto-grants-2016_01
ORD ID	ord-9a3a56a17e91424bbe53c8d72be73137
Source note	uspto-grants-2016_01