(3aR,7aS)-7-(2-Chloro-ethyl)-3a-ethyl-octahydro-indene-1,6-diol

7-(2'-chloroethyl)-3aS-ethyl-3,3a,4,5-tetrahydro-2H-indene-1,6-dione

4-(2'-chloroethyl)-7aR-ethyl-1,2,3,6,7,7a-hexahydroinden-5-one

(3aR,7R,7aS)-7-(2-Azido-ethyl)-3a-ethyl-hexahydro-indene-1,6-dione