A terpenoid 4,7-thianaphthenequinone from an extremely thermophilic and acidophilic micro-organism
Abstract
The occurrence of a terpenoid benzo[b]thiophen-4,7-quinone (1) in an acidophilic bacterium growing at up to 89 °C is reported; this is the first occasion on which a thianaphthenequinone has been found in natural source.