Baccatin V

Chemical Name: [(1S,2S,3R,4S,7R,9R,10S,12R,15S)-4,12-diacetyloxy-1,9,15-trihydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate

Smile: O=C(O[C@@H]([C@]1([H])[C@]2(OC(C)=O)CO[C@]2([H])C[C@@H](O)[C@@]31C)[C@](C4(C)C)(O)C[C@H](O)C(C)=C4[C@@H](OC(C)=O)C3=O)C5=CC=CC=C5