(4aS,4bR,8R,8aS,10R,10aS)-4,4a,4b,5,8a,9,10,10a-octahydro-1-(2-(triisopropylsilyloxy)ethyl)-2-(3-hydroxypropyl)-8,10-bis(methoxymethoxy)-4a,6-dimethylphenanthren-3(8H)-one