Patent ID: 7256213

Claim:
A taxane having the formula: wherein X 3 , X 5 and R 10 , in combination, are selected from one of the combinations 1-44 appearing in the following table: Combination X 3 X 5 R 10 1 2-thienyl tBuOCO— EtOCOO— 2 isopropyl tBuOCO— EtOCOO— 3 isobutenyl tBuOCO— EtOCOO— 4 2-pyridyl tBuOCO— EtOCOO— 5 3-pyridyl tBuOCO— EtOCOO— 6 4-pyridyl tBuOCO— EtOCOO— 7 2-furyl tBuOCO— EtOCOO— 8 3-furyl tBuOCO— EtOCOO— 9 3-thienyl tBuOCO— EtOCOO— 10 cyclobutyl tBuOCO— EtOCOO— 11 isobutenyl tBuOCO— MeOCOO— 12 2-pyridyl tBuOCO— MeOCOO— 13 3-pyridyl tBuOCO— MeOCOO— 14 4-pyridyl tBuOCO— MeOCOO— 15 3-furyl tBuOCO— MeOCOO— 16 2-thienyl tBuOCO— MeOCOO— 17 3-thienyl tBuOCO— MeOCOO— 18 isopropyl tBuOCO— MeOCOO— 19 cyclobutyl tBuOCO— MeOCOO— 20 2-furyl tBuOCO— MeOCOO— 21 2-thienyl PhCO— EtOCOO— 22 2-thienyl EtOCO— EtOCOO— 23 2-thienyl iPrOCO— EtOCOO— 24 2-thienyl iBuOCO— EtOCOO— 25 2-furyl iBuOCO— EtOCOO— 26 2-thienyl 2-PyCO— EtOCOO— 27 2-furyl iPrOCO— EtOCOO— 28 2-furyl EtOCO— EtOCOO— 29 2-furyl PhCO— EtOCOO— 30 2-thienyl ibueCO— EtOCOO— 31 3-furyl iBuOCO— EtOCOO— 32 2-furyl iPrCO— EtOCOO— 33 3-furyl tC 3 H 5 CO— EtOCOO— 34 3-thienyl iBuOCO— EtOCOO— 35 cyclopropyl iBuOCO— EtOCOO— 36 cyclopropyl tBuOCO— EtOCOO— 37 isobutenyl iBuOCO— EtOCOO— 38 isobutenyl tBuOCO— EtOCOO— 39 isopropyl tBuOCO— EtOCOO— 40 phenyl tBuOCO— EtOCOO— 41 p-nitrophenyl tBuOCO— EtOCOO— 42 isopropyl tBuOCO— MeOCOO— 43 phenyl tBuOCO— MeOCOO— 44 p-nitrophenyl tBuOCO— MeOCOO—.