Pyridine → 5-[2-(1,1-Dioxo-1lambda6-thiomorpholine-4-carbonyl)-5-(1-isopropyl-piperidin-4-yloxy)-indol-1-yl]-pyridine-2-carbonitrile

Participants

Reaction Steps

To a mixture of (1,1-dioxo-thiomorpholin-4-yl)-[5-(1-isopropyl-piperidin-4-yloxy)-1H-indol-2-yl]-methanone (Example 2, 150 mg, 1.0 eq.), anhydrous copper(II) acetate (131 mg, 2 eq.), pyridine (120 microL, 4 eq.) in dichloromethane (3.5 mL), 2-cyanopyridine-5-boronic acid pinacol ester (247 mg, 3 eq.) was added. The reaction mixture was stirred for 4 days and then concentrated in vacuo. The residue was then purified on silica eluting with dichloromethane/methanol 98:2 v:v. One fraction was isolated and dried in vacuo, to yield 57 mg (23%) of the desired product as light yellow oil. MS (m/e): 522.5 (MH+, 100%).

Provenance & Evidence