Potassium Phosphate, Tribasic → 2-(10-Fluoro-1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)-4-(1-methyl-5-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)nicotinaldehyde

Participants

Role	Name	HCID	Charge
Reactant	Potassium Phosphate, Tribasic	HCID 62657	—
Reactant	1-methyl-3-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-2(1H)-one	HCID 86683913	—
Reactant	4-Chloro-2-(10-fluoro-1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)nicotinaldehyde	HCID 86684238	—
Reactant	HCID 178418247	HCID 178418247	—
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-(10-Fluoro-1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)-4-(1-methyl-5-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-6-oxo-1,6-dihydropyridin-3-yl)nicotinaldehyde	HCID 86684237	55.6%

Reaction Conditions

Temperature	100 °C

Reaction Steps

A mixture of 134c (300 mg, 0.86 mmol), 1-methyl-3-(5-(4-(oxetan-3-yl)piperazin-1-yl)pyridin-2-ylamino)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2(1H)-one 101l (403 mg, 0.86 mmol), CH3COONa (142 mg, 1.72 mmol), K3PO4 (460 mg, 1.72 mmol), PdCl2(dppf) (71 mg, 0.086 mmol) in CH3CN (25 mL) and H2O (1 mL) was heated at 100° C. for 3 hours. After reaction it was evaporated the residue was purified by silical-gel column eluting with methylene chloride/methanol (30:1) to afford 134d (312 mg, yield 55%) as a brown solid. MS: (M+H)+ 653.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08716274B2
Source dataset	uspto-grants-2014_05
ORD ID	ord-522467710a154e359d9a4d3147fb3ffa
Source note	uspto-grants-2014_05