Cr. Melville et Sj. Gould, MURAYALACTONE, A DIBENZO-ALPHA-PYRONE FROM STREPTOMYCES-MURAYAMAENSIS, Journal of natural products, 57(5), 1994, pp. 597-601
Murayalactone, 6, has been isolated from Streptomyces murayamaensis, a
nd its structure assigned with the use of inverse nmr spectroscopy. Th
is constitutes the first occurrence of a dibenzo-alpha-pyrone in a Str
eptomyces species, and the first biogenesis of this ring system from a
decaketide.