Figure 5.

GNPS molecular network obtained from HRMS/MS data of all fractions OF6-2 to OF6-18. All blue nodes were ions detected in at least one fraction, while the orange node corresponds to an ion detected in the library of cyanobacterial natural products. Single nodes mark the absence of common MS² fragments with those of any other compound. The node size corresponds to the precursor ion intensity. The absence of clear fragmentations for LGTX B (only a suite of water losses was observed) precluded its incorporation in the network, whereas LGTX A and C, as well as the RVTX A, B, and C, were all incorporated. Cosine scores on the edges indicate the similarity between two nodes based on their MS² fragments.