Diethyl-[2-((7S,8R)-7-methyl-7-vinyl-1,4-dioxa-spiro[4.5]dec-8-yl)-2-nitro-ethyl]-amine

8α-cyano-17-methoxy-6α-nitro-D-homo-18-nor-5α-androsta-2,13,15,17-tetraene

8α-cyano-2β-hydroxy-17-methoxy-6α-nitro-D-homo-18-nor-5α-androsta-13,15,17-triene

8α-cyano-17-methoxy-6α-nitro-2-oxo-D-homo-18-nor-5α-androsta-13,15,17-triene