| 摘要 |
PCT No. PCT/FR95/01393 Sec. 371 Date Apr. 24, 1997 Sec. 102(e) Date Apr. 24, 1997 PCT Filed Oct. 23, 1995 PCT Pub. No. WO96/13494 PCT Pub. Date May 9, 1996This invention relates to compounds of the formula (I), preparation thereof, and pharmaceutical compositions containing them: <IMAGE> (I) wherein: Ra is hydrogen, hydroxyl, alkoxy, acyloxy, or an alkoxyacetoxy radical; Rb is hydrogen; or Ra and Rb, together with the carbon atom to which they are attached, form a ketone function; Z represents a hydrogen atom or a radical of formula (II): nally substituted benzoyl, thenoyl, furoyl, or R2-O-CO- radical where R2 is an alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, bicycloalkyl, or an optionally substituted phenyl or heterocyclic radical; R3 is an aromatic heterocyclic, alkyl, alkenyl, alkynyl, cycloalkyl, or a phenyl or naphthyl radical; R4 is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, bicycloalkyl, aryl, or heterocyclic radical; and R5 is an optionally substituted cycloalkenyl, alkyl, alkenyl, alkynyl, or cycloalkyl radical. The compounds of formula (I), where Z is a formula (II) radical, have remarkable antitumoral and antineoplastic properties |
