Acetic Acid → HCID 67458884, compound

Participants

Reaction Steps

Dissolve 5-[4-(azetidin-3-yloxy)-3-methoxy-phenyl]-2-(4-trifluoromethyl-phenyl)-5H-thiazolo[5,4-c]pyridin-4-one (0.909 g, 1.92 mmol) in dichloroethane (25 mL) and add cyclobutanone (0.502 mL, 6.72 mmol), sodium triacetoxyborohydride (0.814 g, 3.84 mmol), and acetic acid (0.22 mL, 3.84 mmol). Stir the mixture overnight, add saturated sodium bicarbonate, and extract with dichloromethane (3×). Dry the mixture using sodium sulfate, filter, and concentrate. Purify via silica gel chromatography using a 0-4.5% gradient of 2N ammonia in methanol/dichloromethane to give 0.400 g (39%) of the desired product. MS/ES m/z 528.0 [M+1]+.

Provenance & Evidence