1. 7α-Methylöstrogene. Über Steroide, 209. Mitteilung
2. G. C. Buzby, G. H. Douglas, C. R. Walk and H. Smith, “Proceedings of the Second International Congress on Hormonal Steroids,” Milan, May, 1966.
3. Melting points were measured with a Kofler hot-stage apparatus and are uncorrected. The pmr spectra were determined in the indicated solvents on a Varian HA-100 spectrometer with tetramethylsilane as an internal standard; the chemical shifts are reported in “δ” values (ppm).