Pharmaceutica acta Helvetiae 1994-May
Flavonoids from Iochroma gesnerioides.
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Resumo
Two aglycones (kaempferol and quercetin) and three glycosides (isoquercitrin, kaempferol 3-sophoroside and quercetin 3-sophoroside) were isolated from Iochroma gesnerioides (Kunth) Miers (Solanaceae). Whereas the aglycones are common for the Solanaceae, their 3-sophorose derivatives are found only in three genera of this family. Their isolation and identification (mainly by 1H- and 13C-nmr) are reported here.
