(3aR,4R,5R,7S,8S,9R,9aS,12R)-8-hydroxy-4,7,9,12-tetramethyl-3-oxo-7-vinyldecahydro-4,9a-propanocyclopenta[8]annulen-5-yl 2-((3-((((8-methyl-8-azabicyclo[3.2.1]octan-3-yl)thio)carbonothioyl)amino)cyclohept-4-en-1-yl)thio)acetate