(-)-(1R,2S,3S,4R)-3,4-Dihydroxy-1,2-epoxy-1,2,3,4-tetrahydrobenzo(c)phenanthrene Benzo(5,6)phenanthro(3,4-b)oxirene-2,3-diol, 1a,2,3,11d-tetrahydro-, (1a-alpha,2-beta,3-alpha,11d-alpha)-, (-)- DI9874300