1. Synthetic Estrogens and the Relation Between their Structure and their Activity.
2. On Doisynolic Acids, A New Class of Estrogens.
3. Artificial Estrogens
4. Steroidal estrogens
5. Abbreviations used are: Marrianolic acid, 7-hydroxy-2-carboxy-1,2,3,4,4a,9,10,10a-octahydro-2-methylphenanthrene acetic acid; doisynolic acid, 7-hydroxy-1,2,3,4,4a,9,10,10a-octahydro-2-methyl-1-ethylphenantrene 2-carboxylic acid; oestradiol, OE2,1,3,5(10)- oestratriene-3-17β-diol; oestriol, OE3,1,3,5(10)-oestratriene-3,16α, 17β-triol; oestrone, OE1,17β-hydroxy-1,3,5(10)-oestratrien-17-one.