Showing structure for (1r,3r,4r,5r,8r,9s,11s,13r,14s,16s,17r,18r)-5-methyl-12-methylidene-7-azaheptacyclo[9.6.2.0¹,⁸.0⁵,¹⁷.0⁷,¹⁶.0⁹,¹⁴.0¹⁴,¹⁸]nonadecane-3,4,13,18-tetrol