Potassium Phosphate, Tribasic → 2-(5-(5-(2-(Dimethylamino)ethoxy)pyridin-2-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-4-fluoro-6-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)benzyl Acetate

https://huagongshe.com/reaction/1919095

Participants

Role	Name	HCID	Charge
Reactant	Potassium Phosphate, Tribasic	HCID 62657	—
Reactant	Sodium Acetate	HCID 517045	—
Reactant	5-bromo-3-(5-(2-(dimethylamino)ethoxy)pyridin-2-ylamino)-1-methylpyridin-2(1H)-one	HCID 58044007	—
Reactant	2-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-4-fluoro-6-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)benzyl Acetate	HCID 58044205	—
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-(5-(5-(2-(Dimethylamino)ethoxy)pyridin-2-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-4-fluoro-6-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)benzyl Acetate	HCID 68096437	57.2%

Reaction Conditions

Temperature	110 °C

Reaction Steps

A mixture of 5-bromo-3-(5-(2-(dimethylamino)ethoxy)pyridin-2-ylamino)-1-methylpyridin-2(1H)-one 268c (205 mg, 0.56 mmol), 4-fluoro-2-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl acetate 210d (270 mg, 0.56 mmol), PdCl2(dppf) (51 mg, 0.07 mmol), K3PO4 (100 mg), and NaOAc (40 mg) in MeCN (6 mL) and water (2 mL) was heated at 110° C. in a sealed tube for 2 h. The solvent was evaporated in vacuo. The residue was purified on reverse phase Combi-flash to give 297a (206 mg, 50%). MS: [M+H]+ 643.

Provenance & Evidence

DOI	10.6084/m9.figshare.5104873.v1
Patent number	US08618107B2
Source dataset	uspto-grants-2013_12
ORD ID	ord-a75cc031e51c481ea578c787a299a191
Source note	uspto-grants-2013_12