SEARCH Articles Figures Tables Altering B-Ring Hydroxylation B Ring and Its Substitutions B ring substitutions B-Ring Chemistry B-ring hydroxylation Catechol B-rings Flavonoids, B-ring Reactions in the B-Ring of Sterols Rearrangements Involving Both A- and B-Rings Rearrangements Involving the B-Ring Ried, W„ Heinz, B„ Four-Membered Rings Ried, W„ Heinz, B„ Four-Membered Rings Containing One Sulfur Atom SAR of B-Ring Analogs Steroid B ring aromatization Steroid cis A-B ring fusion Steroids B-ring aromatic Study for Closure of the B Ring