Triterpene derivatives and remedies for liver diseases

Details Triterpene derivatives and remedies for liver diseases Triterpene derivatives and remedies for liver diseases

2006-12-26

2006-12-26

Badio, Barbara P. (Department: 1617)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S358000, C549S543000, C560S249000, C568S326000, C568S823000, C568S875000

Reexamination Certificate

active

07153979

ABSTRACT:
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 R1represents a hydroxyl group, arylmethyloxy, lower alkoxy, or lower alkanoyloxy, R2represents lower alkyl, lower alkenyl, —CH2OR5, formyl, —COOR6, or —CH2N(R7)R8, or R1and R2may combine with each other to form —O—C(R9)R10—O—CH2—, R3and 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 R3and R4may combine with each other to form oxo, hydroxyimino, or alkylidene and X represents O, CH2, or NH.

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