Ether cleavage of 4-(4-methoxyphenylsulfanyl)benzoic acid (I) with pyridine hydrochloride at 220 C provided phenol derivative (II). Subsequent esterification of (II) with methanol and sulfuric acid gave methyl ester (III). The quinolylmethyl ether (V) was then prepared by alkylation of (III) with 2-(chloromethyl)quinoline (IV) in the presence of K2CO3 and KI. Finally, the methyl ester group of (V) was hydrolyzed employing a hydroalcoholic solution of KOH.