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AbstractThe treatment of 3β‐hydroxy‐16α‐bromo‐5α‐androstan‐17‐one, 3β‐acetoxy‐16α‐bromo‐5‐androsten‐17‐one and 21‐bromo‐5‐pregnen‐3β‐ol‐20‐one with 4,5‐dimethyl‐o‐phenylenediamine gave substituted quinoxalines.Hydrolysis of 3β‐acetoxy‐5‐androsteno[16,17‐b]‐6′,7′‐dimethylquinoxaline produced the corresponding 3β‐hydroxy compound. 3‐Oxo‐4‐androsteno[16,17‐b]‐6′,7′‐dimethylquinoxaline was obtained by Oppenauer oxidation of the corresponding alcohol.
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 10 | |
popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |