Showing structure for (1s,3r,4s,5r,8s,9r,10r,11r,14r,16s,17s,18s,19s)-4-(acetyloxy)-9,10,19-trihydroxy-5-methyl-12-methylidene-7-azaheptacyclo[9.6.2.0¹,⁸.0⁵,¹⁷.0⁷,¹⁶.0⁹,¹⁴.0¹⁴,¹⁸]nonadecan-3-yl (2r)-2-methylbutanoate