title: 3-Iodo-8β,9α,14α-estra-1,3,5(10)-trien-17-one.
abstract: In the title compound, C(18)H(21)IO, the cyclo-hexane ring adopts a chair conformation, whereas the cyclo-pentane ring and the ten-membered tetra-line portions each adopt an envelope conformation. For the five-membered ring, the methine C atom deviates by 0.638 (4) Å (r.m.s. of the four other atoms is 0.005 Å) and for the ten-membered ring, the methine C atom constituting the flap deviates by 0.671 (3) Å (r.m.s. of the other nine atoms is 0.066 Å).
authors.affiliation: Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Kamal Aziz
authors.initials: KA
authors.lastname: Ketuly
authors.forename: A Hamid
authors.initials: AH
authors.lastname: A Hadi
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng