J. Jizba et al., NEW METABOLITES OF STREPTOMYCES-GLOBISPORUS AND STREPTOMYCES-GRISEUS, Collection of Czechoslovak Chemical Communications, 58(6), 1993, pp. 1452-1456
5,6,7.7a-Tetrahydro-3H-pyrrolizin-7a-ol-3-one (VI) and N-[2-(1-hydroxy
-4-methylpentyl)]acetamide (VII) were isolated from submerged cultures
of the macrotetrolide-producing strains Streptomyces globisporus and
S. griseus. Proposed structures are based on spectroscopic measurement
s.