| abstract |
Taxoids of formula: (I) in which R represents a hydrogen atom, an acetyl radical, or an alkoxyacetyl radical having 1 to 6 carbon atoms, R1 represents a benzoyl radical or a radical R2-O-CO- in which R2 represents a C1-6 alkyl radical, and Ar represents a phenyl, 2- or 3-thienyl or 2- or 3- furyl radical, have remarkable antitumour activity. |