Water → (2'-(7,7-Dimethyl-1-oxo-3,4,7,8-tetrahydro-1H-cyclopenta-[4,5]pyrrolo[1,2-a]pyrazin-2(6H)-yl)-5-((2-ethylpyrimidin-4-yl)amino)-1-methyl-6-oxo-1,6-dihydro-[3,4'-bipyridin]-3'-yl)methyl Acetate

Participants

Role	Name	HCID	Charge
Reactant	Water	HCID 962	—
Reactant	Potassium Phosphate, Tribasic	HCID 62657	—
Reactant	[4-(Dihydroxyboranyl)-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 86684340	—
Reactant	5-Bromo-3-(2-ethylpyrimidin-4-ylamino)-1-methylpyridin-2(1H)-one	HCID 86684424	—
Catalyst	Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)	HCID 178418228	—
Solvent	Tetrahydrofuran	HCID 8028	—
Product	(2'-(7,7-Dimethyl-1-oxo-3,4,7,8-tetrahydro-1H-cyclopenta-[4,5]pyrrolo[1,2-a]pyrazin-2(6H)-yl)-5-((2-ethylpyrimidin-4-yl)amino)-1-methyl-6-oxo-1,6-dihydro-[3,4'-bipyridin]-3'-yl)methyl Acetate	HCID 86684425	55.6%

Reaction Steps

A 100-mL round-bottomed flask equipped with a reflux condenser was charged with 229b (277 mg, 0.90 mmol), (3-(acetoxymethyl)-2-(7,7-dimethyl-1-oxo-3,4,7,8-tetrahydro-1H-cyclopenta[4,5]pyrrolo[1,2-a]pyrazin-2(6H)-yl)pyridin-4-yl)boronic acid 199e (358 mg, 0.90 mmol), Pd(dppf)Cl2 (74 mg, 0.090 mmol), K3PO4 (381 mg, 1.80 mmol), water (2 mL), and tetrahydrofuran (20 mL). After three cycles of vacuum/argon flush, the mixture was heated at reflux for 3 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 60:1 dichloromethane/methanol to afford 229c as white solid (291 mg, 50%). MS-ESI: [M+H]+ 582.4

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US09238655B2
Source dataset	uspto-grants-2016_01
ORD ID	ord-757b98ed4e4246ea97b1301f0a5db79d
Source note	uspto-grants-2016_01