A compound of Formula (I): or a metabolite thereof, or an ester of the compound of Formula (I) or the metabolite thereof, or a pharmaceutically acceptable salt of each thereof, wherein m, n, X1 and X2 are as defined herein, is useful for inhibiting liver steatosis, lobular inflammation, hepatic ballooning and hepatic scarring.一種式(I)之化合物:或其代謝物,或式(I)化合物之酯類或其代謝物,或每一者其之藥學上可接受鹽類,其中m、n、X1與X2係如於此所界定,該化合物對抑制肝臟脂肪變性(liver steatosis)、肝小葉發炎(lobular inflammation)、肝臟腫脹(hepatic ballooning)及肝結疤(hepatic scarring)為有用的。