Hydroxyamine hydrochloride → HCID 76143542, compound

Participants

Reaction Steps

A solution of 3-(2,6-difluorophenyl)-1-[2-[1-[2-[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetyl]-4-piperidinyl]-4-thiazolyl]-2-propen-1-one (i.e. the product of Example 2, Step A) (0.5 g, 0.93 mmol) and hydroxylamine hydrochloride (0.078 g, 1.14 mmol) in methanol (10 mL) was heated at reflux for 2 h. The reaction mixture was concentrated under reduced pressure and partitioned between dichloromethane and saturated sodium bicarbonate. The mixture was poured onto a Celite® extraction tube (ChemElute® diatomaceous earth-based liquid-liquid exchange cartridge), eluted with dichloromethane and concentrated to provide 0.5 g of the title compound.

Provenance & Evidence