Methyl (+/-)-(4'α,4'aS*,5'aβ,6'aβ,10'aα,10'bβ)-decahydro-4',6'a,10'b-trimethyl-9'-oxospiro<1,3-dioxolane-2,3'(4'H)-<2H>phenanthro<8a,9-b>oxiren>-8'-carboxylate

(+/-)-(1'α,4'aβ,4'bα,8'aβ,10'aα)-4',4'a,4'b,5',7',8',8'a,10'a-Octahydro-10'a-hydroxy-1',4'a,8'a-trimethylspiro<1,3-dioxolane-2,2'(1'H)-phenanthren>-6'(3'H)-one

(+/-)-(4aα,4bβ,8aα,10β)-4,4a,4b,7,8,8a,9,10-Octahydro-10-hydroxy-1,4a,8a-trimethylphenanthrene-2,6(3H,5H)-dione

1,1-Dimethylethyl (+/-)-(1'α,4'aβ,4'bα,8'aβ)-3',4',4'a,4'b,5',6',7',8',8'a,9'-decahydro-7'-(methoxycarbonyl)-1',4'a,8'a-trimethyl-6'-oxospiro<1,3-dioxolane-2,2'(1'H)-phenanthrene>-8'acetate