(3S,4aS,5S,6aS,6bS,8aS,9S,9aS,12S,15aS,15bR,16aS,16bR)-3,5,9-trihydroxy-9,12,16b-trimethyltetracosahydro-14H-benzo[4,5]indeno[1,2-h]pyrido[1,2-b]isoquinoline 14-oxide