Pivaloyl chloride → HCID 58372710, compound

Participants

Reaction Steps

As described for Example 21, [3-(2-bromomethyl-4-nitro-phenoxy)-4-chloro-phenyl]-acetic acid ethyl ester and 2-methyl-2-propanethiol were reacted to provide [3-(2-tert-butylsulfanylmethyl-4-nitro-phenoxy)-4-chloro-phenyl]-acetic acid ethyl ester, which was reduced to [3-(4-amino-2-tert-butylsulfanylmethyl-phenoxy)-4-chloro-phenyl]-acetic acid ethyl ester. The amine was treated with trimethylacetyl chloride to provide {3-[2-tert-Butylsulfanylmethyl-4-(2,2-dimethyl-propionylamino)-phenoxy]-4-chloro-phenyl}-acetic acid ethyl ester. Hydrolysis of the ester provided the acid.

Provenance & Evidence