1-((2S,3S,5S,8R,9S,10S,13S,14S,16S,17R)-3-acetoxy-17-hydroxy-10,13-dimethyl-2-(pyrrolidin-1-yl)hexadecahydro-1H-cyclopenta[a]phenanthren-16-yl)-1-allylpyrrolidin-1-ium bromide