Taxane derivatives of formula (I) in which: R is trifluoromethyl, phenyl, 2-furyl, 2-thienyl; R
1
is t-butoxycarbonyl or benzoyl; R
2
is hydroxy; R
3
is hydrogen or, together with R
2
, it forms the residue of a cyclic carbonate of formula: [I] with the proviso that when R3 is hydrogen, R is different from phenyl. Compounds of formula (I) have antitumor activity.
1
公式(I)的
紫杉烷衍
生物,其中:R是三
氟甲基,苯基,2-
呋喃基,2-
噻吩基; R1是叔丁氧羰基或苯甲酰基; R2是羟基; R3是氢或与R2一起形成公式的环状
碳酸酯残基:[I],但当R3为氢时,R与苯基不同。化合物公式(I)具有抗肿瘤活性。