Acetonitrile → 2-(6-tert-Butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-(1-methyl-6-oxo-5-(pyrimidin-4-ylamino)-1,6-dihydropyridin-3-yl)nicotinaldehyde

Participants

Role	Name	HCID	Charge
Reactant	Acetonitrile	HCID 6342	—
Reactant	Potassium Phosphate, Tribasic	HCID 62657	—
Reactant	1-methyl-3-(pyrimidin-4-ylamino)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one	HCID 58043862	—
Reactant	2-(6-tert-Butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-chloronicotinaldehyde	HCID 86683915	—
Catalyst	Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)	HCID 178418228	—
Solvent	Water	HCID 962	—
Product	2-(6-tert-Butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-(1-methyl-6-oxo-5-(pyrimidin-4-ylamino)-1,6-dihydropyridin-3-yl)nicotinaldehyde	HCID 86683932	51%

Reaction Conditions

Temperature	100 °C

Reaction Steps

A 100-mL round-bottomed flask equipped with a reflux condenser was charged with 2-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-4-chloronicotinaldehyde 103b (110 mg, 0.31 mmol), 113b (100 mg, 0.31 mmol), PdCl2(dppf) (25 mg, 0.030 mmol), K3PO4 (241 mg, 0.93 mmol), NaAcO (76 mg, 0.93 mmol), acetonitrile (15 mL), and water (0.5 mL). After three cycles of vacuum/argon flush, the mixture was heated at 100° C. for 3 h. It was then filtered and the filtrate was evaporated under reduced pressure. The residue was purified with silica-gel column chromatography eluting with 1:20 methanol/dichloromethane to afford 113c as a red solid (80 mg, 51%). MS-ESI: [M+H]+ 526.3

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08669251B2
Source dataset	uspto-grants-2014_03
ORD ID	ord-5a1f830d43154e219a21c0f16cb13959
Source note	uspto-grants-2014_03