Toluene-4-sulfonic acid 3-((2S,3S)-3-{(S)-1-[(3S,8S,9S,10R,13S,14S,17R)-10,13-dimethyl-3-(tetrahydro-pyran-2-yloxy)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-ethyl}-oxiranyl)-2-methyl-propyl ester

(20R,22S)-3β,22-Dihydroxycholest-5-en