Abstract
Two new dihydroisochromenes, named seimisochromenes A and B (1 and 2), were isolated from an endophytic fungus, Seimatosporium sp. The structures of seimisochromenes A and B have been determined from 1D (1H and 13C NMR spectra) and 2D (COSY, HMQC, HMBC, and NOESY) NMR experiments.
Acknowledgments
We thank the BMBF (Bundesministerium für Bildung und Forschung, Projekt No. SUA 07/003) for financial support.