Phenazinolins A–E: novel diphenazines from a tin mine tailings-derived Streptomyces species†
Abstract
Phenazinolins A–E (1–5), which possess a carbon skeleton unique to diphenazines (the azabicyclo[3.3.1]nonadienol moiety in 1–3 and the oxabicyclo[3.3.1]nonadienol moiety in 4 and 5), were isolated from tin mine tailings-derived Streptomyces diastaticusYIM DT26, with 1–3 exhibited appreciable cytotoxicity and