o-Fluorobenzaldehyde → HCID 86689211, compound

Participants

Reaction Steps

In a flask, dichloromethane (0.295 mL) and acetic acid (2 drops) was added to N-(piperidin-3-yl)-3-(pyridin-4-yl)-6,7-dihydro-1H-pyrazolo[4,3-c]pyridine-5(4H)-carboxamide trifluoroacetate salt (0.021 g, 0.05 mmol) and 2-fluorobenzaldehyde (0.0124 g, 0.1 mmol). The reaction was sonicated for 1 hr. Sodium triacetoxyborohydride (0.050 g, 0.25 mmol) was added in one portion. The reaction was stirred for an additional 16 hours. Saturated sodium bicarbarbonate (1 mL) was added. The reaction was stirred for an additional 5 minutes and was extracted with dichloromethane (3×1 mL). The extracts were combined, dried with anhydrous sodium sulfate, filtered, and concentrated in vacuo. The resulting crude product was purified by prep LC/MS. LC-MS: 435.68 [M+H]. LC/MS RT=1.82 min.

Provenance & Evidence