Showing structure for 7-(acetyloxy)-11-ethyl-4,16-dihydroxy-13-methyl-6-methylidene-11-azahexacyclo[7.7.2.1⁵,⁸.0¹,¹⁰.0²,⁸.0¹³,¹⁷]nonadecan-11-ium-11-olate