Steroids rhenium complexes

Rhenium complexes that mimic the structure of steroids, upper row dihydrotestosterone, progesterone, and estradiol, lower rows are the corresponding complexes... 

Metal carbonyl complexes of steroids have been synthesized by the groups of Jo-hannsen and Katzenellenbogen (Arterburn et al. 2003 Bigott et al. 2005 Luyt et al. 2003 Wust et al. 1998, 1999). Various 17j -progesterone and 7a-estradiole dithioether and cyclopentadiene complexes of technetium/rhenium(I) tricarbonyl have been pre-... 

Chi, D.Y., O Neil, J.P., Anderson, C.J., Welch, M.J. and Katzenellen-bogen, J.A. (1994) Homodimeric and heterodimeric bis(amino thiol) oxometal complexes with rhenium(V) and technetium(V). Control of heterodimeric complex formation and an approach to metal complexes that mimic steroid hormones. J. Med. Chem. 37 928-937. 

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