反应详情

[3-(2-isopropylsulfanylmethyl-4-nitro-phenoxy)-4-methoxy-phenyl]-acetic acid ethyl ester was reduced to the amine according to the procedure described in Example 11, Step 2. The amine was treated with 4-chlorobenzoyl chloride to provide {3-[4-(4-Chloro-benzoylamino)-2-isopropylsulfanylmethyl-phenoxy]-4-methoxy-phenyl}-acetic acid ethyl ester. Hydrolysis of the ester as outlined in Example 11, Step 4 provided the acid.