Showing structure for (3r,4r,6s,7s)-3,13-dihydroxy-6-methyl-11,18-dioxo-9-(λ⁵-diazynylidene)-5-oxapentacyclo[8.8.0.0²,⁸.0⁴,⁶.0¹²,¹⁷]octadeca-1(10),2(8),12,14,16-pentaen-7-yl acetate