Novofumigatonin (1), a new metabolite, has been isolated from Aspergillus novofumigatus. The structure and relative stereochemistry were determined from HR ESI MS, one- and two-dimensional NMR, and single-crystal X-ray analysis. The absolute configuration was assigned using vibrational circular dichroism in combination with density functional calculations.
Rank, C., Phipps, R. K., Harris, P., Fristrup, P., Larsen, T. O., & Gotfredsen, C. H. (2008). Novofumigatonin, a New Orthoester Meroterpenoid from Aspergillus novofumigatus. Organic Letters, 10(3), 401-404. https://doi.org/10.1021/ol7026834