Potassium Phosphate, Tribasic → HCID 86684618, compound

Participants

Role	Name	HCID	Charge
Reactant	Potassium Phosphate, Tribasic	HCID 62657	—
Reactant	Sodium Acetate	HCID 517045	—
Reactant	Tert-butyl 4-(6-((5-bromo-1-methyl-2-oxo-1,2-dihydropyridin-3-yl)amino)pyridin-3-yl)piperazine-1-carboxylate	HCID 58043929	—
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	—
Catalyst	Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)	HCID 178418228	—
Solvent	Water	HCID 962	—
Solvent	Acetonitrile	HCID 6342	—
Product	HCID 86684618	HCID 86684618	63.3%

Reaction Conditions

Temperature	95 °C

Reaction Steps

A 50-mL single-neck round-bottomed flask equipped with a magnetic stirrer and a reflux condenser was charged with (2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)methyl acetate 199e (287.4 mg, 0.60 mmol), 339c (145 mg, 0.30 mmol), Pd(dppf)Cl2 (24.5 mg, 0.030 mmol), K3PO4 (127.2 mg, 0.60 mmol), sodium acetate (49.2 mg, 0.60 mmol), water (0.50 mL), and acetonitrile (10 mL). After three cycles of vacuum/nitrogen flush, the mixture was heated at 95° C. for 1 h. 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 ethyl acetate to afford 339d as a yellow solid (140 mg, 61%). MS-ESI: [M+H]+ 737.3.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US09238655B2
Source dataset	uspto-grants-2016_01
ORD ID	ord-14bc2fb1802843e992939fde7477c65e
Source note	uspto-grants-2016_01