| 摘要 |
A triterpene derivative useful for the treatment of hepatic disorders is disclosed. This compound comprises as an active ingredient a triterpene derivative represented by the following formula (I) or a salt thereof:wherein R1 represents a hydroxyl group, arylmethyloxy, lower alkoxy, or lower alkanoyloxy, R2 represents lower alkyl, lower alkenyl, -CH2OR5, formyl, -COOR6, or -CH2N(R7)R8, or R1 and R2 may combine with each other to form -O-C(R9)R10-O-CH2-, R3 and R4, which may be the same or different represent a hydrogen atom, a hydroxyl group, lower alkyl, lower alkenyl, aryl, hydroxymethyl, -N(R11)R12, formyl, -COOR6, or -OR13, or R3 and R4 may combine with each other to form oxo, hydroxyimino, or alkylidene and X represents O, CH2, or NH.
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