(2R,3S,4S,5R)-3-(3,4-difluoro-2-methoxyphenyl)-4,5-dimethyl-5-(trifluoromethyl)tetrahydrofuran-2-carboxylic acid (R)-1-phenylethan-1-amine salt

(2R,3S,4S,5R)-3-(3,4-difluoro-2-methoxyphenyl)-4,5-dimethyl-5-(trifluoromethyl)tetrahydrofuran-2-carboxylic acid

pharmaceutical intermediate

Methyl 4-tert-butylbenzoate

n.a

3-(3-bromo-2,5-difluorophenyl)-2-oxopropanoic acid

n.a

3-(3-bromophenyl)-2-cyano-N-(1-methylidene-1-oxo-1-benzothiophen-6-yl)prop-2-enamide;3-(2-chlorophenyl)-2-cyano-N-(1-methylidene-1-oxo-1-benzothiophen-6-yl)prop-2-enamide;2-cyano-3-(3-methoxy-4,5-dimethylphenyl)-N-(1-methylidene-1-oxo-1-benzothiophen-6-yl)prop-2-enamide;2-cyano-N-(1-methylidene-1-oxo-1-benzothiophen-6-yl)-3-(3-methylphenyl)prop-2-enamide;2-cyano-N-(1-methylidene-1-oxo-1-benzothiophen-6-yl)-3-(2-nitrophenyl)prop-2-enamide;2-cyano-N-(1-methylidene-1-oxo-1-benzothiophen-6-yl)-3-(4-nitrophenyl)prop-2-enamide

n.a

2-(4'-Chloro-[1,1'-biphenyl]-4-yl)benzo[d]oxazole

n.a

(3S,4S,5R)-3-(3,4-difluoro-2-methoxyphenyl)-4,5-dimethyl-5-(trifluoromethyl)tetrahydrofuran-2-yl acetate

active pharmaceutical ingredient

Suzetrigine Impurity 4

Pharmaceutical impurity reference standard