Sodium Hydroxide → HCID 86726639, compound

Participants

Reaction Steps

1-(Piperidin-4-yl)-7-{[2-(trimethylsilyl)ethoxy]methyl}-1H-pyrrolo[3′,2′:5,6]pyrido[4,3-d]pyrimidine-2,4(3H,7H)-dione hydrochloride (50 mg, 0.111 mmol) and 4-cyanobenzaldehyde (29 mg, 0.22 mmol) in a mixture of methanol (2 ml) and acetic acid (0.2 mL) were stirred with 2-picoline borane (50 mg, 0.47 mmol) at room temperature for 2 days. After addition of 1 M aqueous sodium hydroxide, the reaction mixture was extracted with a mixture of ethyl acetate and 2-propanol, and the organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (chloroform/methanol=10/1 (v/v)) to give the title compound as a colorless solid (23.4 mg, yield 40%).

Provenance & Evidence