Fig. 2 in Feature-based molecular networking-guided discovery of siderophores from a marine mesophotic zone Axinellida sponge-associated actinomycete Streptomyces diastaticus NBU2966

Fig. 2. Structures of siderophores 1–10. Three types of iron-chelating moieties are marked with blue, red, and purple, respectively. Previously undescribed natural products are highlighted with red subscript numbers. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)