Potassium Phosphate, Tribasic → 2-{4,4-Dimethyl-9-oxo-7-thia-10,11-diazatricyclo[6.4.0.02,6]dodeca-1(8),2(6),11-trien-10-yl}-4-{1-methyl-5-[(5-methyl-1,2-oxazol-3-yl)amino]-6-oxo-1,6-dihydro-pyridin-3-yl}pyridine-3-carbaldehyde

Participants

Role	Name	HCID	Charge
Reactant	Potassium Phosphate, Tribasic	HCID 62657	—
Reactant	Sodium Acetate	HCID 517045	—
Reactant	4-Chloro-2-{4,4-dimethyl-9-oxo-7-thia-10,11-diazatricyclo[6.4.0.02,6]dodeca-1(8),2(6),11-trien-10-yl}pyridine-3-carbaldehyde	HCID 86684516	—
Reactant	1-Methyl-3-(5-methylisoxazol-3-ylamino)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one	HCID 86684530	—
Catalyst	Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)	HCID 178418228	—
Solvent	Water	HCID 962	—
Solvent	Acetonitrile	HCID 6342	—
Product	2-{4,4-Dimethyl-9-oxo-7-thia-10,11-diazatricyclo[6.4.0.02,6]dodeca-1(8),2(6),11-trien-10-yl}-4-{1-methyl-5-[(5-methyl-1,2-oxazol-3-yl)amino]-6-oxo-1,6-dihydro-pyridin-3-yl}pyridine-3-carbaldehyde	HCID 86684531	—

Reaction Conditions

Temperature	100 °C

Reaction Steps

A 50-mL round-bottomed flask equipped with a magnetic stirrer was charged with 4-chloro-2-{4,4-dimethyl-9-oxo-7-thia-10,11-diazatricyclo[6.4.0.02,6]dodeca-1(8),2(6),11-trien-10-yl}pyridine-3-carbaldehyde 282i (72 mg, 0.20 mmol), 288a (102 mg, 0.30 mmol), PdCl2(dppf) (16 mg, 0.020 mmol), K3PO4 (85 mg, 0.40 mmol), sodium acetate (33 mg, 0.40 mmol), acetonitrile (10 mL), and water (0.5 mL). After bubbling nitrogen into the mixture for 10 minutes, a reflux condenser was attached to the flask and the mixture was heated at 100° C. for 1 h. It was then cooled to room temperature and filtered. The filtrate was concentrated under reduced pressure to afford 288b, which was used in the next step without further purification. MS-ESI: [M+H]+ 529.3.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US09238655B2
Source dataset	uspto-grants-2016_01
ORD ID	ord-0bda379087a94294939f0ab229ed5878
Source note	uspto-grants-2016_01