C. Iwamoto et al., Absolute stereostructures of novel cytotoxic metabolites, penostatins A-E,from a Penicillium species separated from an Enteromorpha alga, TETRAHEDRON, 55(50), 1999, pp. 14353-14368
Penostatins A - E have been isolated tom a strain of Penicillium sp. origin
ally separated tom the marine alga Enteromorpha intestinalis, and their abs
olute stereostructures and conformations have been established on the basis
of spectral analyses and some chemical transformations. All the compounds
except for penostatin D exhibited significant cytotoxicity against cultured
P388 cells. (C) 1999 Elsevier Science Ltd. All rights reserved.