Showing structure for (3s,5r,8r,9s,11s,14r,17r,18s)-5,7-dimethyl-12-methylidene-10,15,16-trioxo-7-azahexacyclo[9.6.2.0¹,⁸.0⁵,¹⁷.0⁹,¹⁴.0¹⁴,¹⁸]nonadecan-3-yl acetate