(+)-4-norestr-3(5)-ene-2,17-dione

2,5,5-trimethyl-2-(2-oxiranylethyl)-[1.3]dioxane

(+)-18-homo-4-nor-3,5-secoestrane-2,5,17-trione

17β-Hydroxy-A-nor-5α-oest-1(10)-en-2-on

17β-tert-Butoxy-A-nor-3(5)-oestren-2-on