Taxanes having an ethyl ester or cyclopropyl ester substituent at C(10), a keto substituent at C(9), a hydroxy substituent at C(7), a thienyl substituent at C(3') and a cyclobutyloxycarbamate or cyclopentyloxycarbamate substituent at C(3'), pharmaceutical compositions comprising such taxanes, methods of treatment and administration, and methods of preparation of medicaments comprising the taxanes.