Rifabutin

Chemical Name: (9S,12E,14S,15R,16S,17R,18R,19R,20S,21S,22E,24Z)-6,18,20-Trihydroxy-14-methoxy-7,9,15,17,19,21,25-heptamethyl-1'-(2-methylpropyl)-5,10,26-trioxo-3,5,9,10-tetrahydrospiro[9,4-(epoxypentadeca[1,11,13]trienimino)-2H-furo[2',3':7,8]naphtho[1,2-d]imidazole-2,4'-piperidine]-16-yl acetate.

Smile: O=C1C(N2)=C3C(C4=C1C(O)=C(C)C(O[C@]5(C)O/C=C/[C@]([H])(OC)[C@@]([H])(C)[C@](OC(C)=O)([H])[C@]([H])(C)[C@]([H])(O)[C@]([H])(C)[C@@]([H])(O)[C@](C)([H])/C=C/C=C(C)\C2=O)=C4C5=O)=NC6(CCN(CC(C)C)CC6)N3