The molecule is a taxane diterpenoid that is taxa-4(20),11-diene in which the 5alpha hydrogen has been replaced by an acetoxy group and the 10beta and 14beta hydrogens by hydroxy groups.
[(1S,3S,5S,8S,10S,14S)-10,14-dihydroxy-8,12,15,15-tetramethyl-4-methylidene-5-tricyclo[9.3.1.03,8]pentadec-11-enyl] acetate