Reaction #680134

Reaction equation

5-bromo-1-methyl-3-(5-(1-methylpiperidin-4-yl)pyridin-2-ylamino)pyridin-2(1H)-one

5-Bromo-1-methyl-3-(5-(1-methylpiperidin-4-yl)pyridin-2-ylamino)pyridine-2(1H)-one

{3-[(acetoxy)methyl]-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridin-4-yl}boronic acid

{3-[(Acetyloxy)methyl]-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridin-4-yl}boronic Acid

K3PO4

sodium acetate trihydrate

→

236a

Yield 57.7%

(2-{4,4-Dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}-4-(1-methyl-5-{[5-(1-methylpiperidin-4-yl)pyridin-2-yl]amino}-6-oxopyridin-3-yl)pyridin-3-yl)methyl Acetate

Yield 57.7%

Solvents

acetonitrile

water

Conditions

Workup

1. 1
   OtherA 50-mL round-bottomed flask equipped with a reflux condenser
2. 2
   OtherAfter three cycles of vacuum/argon flush
3. 3
   FiltrationIt was then filtered
4. 4
   Otherthe filtrate was evaporated under reduced pressure
5. 5
   OtherThe residue was purified on silica-gel column chromatography
6. 6
   Washeluting with 25:1 dichloromethane/methanol

Procedure

A 50-mL round-bottomed flask equipped with a reflux condenser was charged with 5-bromo-1-methyl-3-(5-(1-methylpiperidin-4-yl)pyridin-2-ylamino)pyridin-2(1H)-one 232d (160 mg, 0.40 mmol), {3-[(acetoxy)methyl]-2-{4,4-dimethyl-9-oxo-1,10-diazatricyclo[6.4.0.02,6]dodeca-2(6),7-dien-10-yl}pyridin-4-yl}boronic acid 199e (240 mg, 0.60 mmol), Pd(dppf)Cl2 (20 mg, 0.020 mmol), K3PO4 (180 mg, 0.80 mmol), sodium acetate trihydrate (120 mg, 0.80 mmol), water (0.5 mL), and acetonitrile (10 mL). After three cycles of vacuum/argon flush, the mixture was heated at 100° C. for 2 h. It was then filtered and the filtrate was evaporated under reduced pressure. The residue was purified on silica-gel column chromatography eluting with 25:1 dichloromethane/methanol to afford 236a as a yellow solid (150 mg, 38%). MS-ESI: [M+H]+ 650.3

Source