Figure 2.

A. Sorbicillinoid‐related compounds detected in this study.

B. Response ratio of the sorbicillinoid concentrations in the culture broth of indicated sorbicillin‐producing P. chrysogenum strains. Reserpine was used as internal standard for normalization. Compounds were detected after 3 and 5 days of growth. The mass‐to‐charge ratio (m/z) of the protonated metabolites, their empirical formulas and retention time (RT) are indicated. Structures of sorbicillin‐related compounds detected in this study. (*) Indicates an isomer of the known sorbicillinoids.