Shown below is the structure of Lactimidomycin, a potent inhibitor of cell migration, proliferation and protein synthesis. Identify the carboxylic acid derivative/s in the structure of Lactimidomycin. 
Definitions:
Herbicides
Chemical substances used to control or kill unwanted plants (weeds).
Transgenic Organisms
Transgenic organisms have had genes from other species inserted into their genetic code, allowing them to express traits that are not naturally theirs.
Plant Cell
The basic structural and functional unit of plants, distinguished by having a cell wall, chloroplasts, and a central vacuole.
Embryos
Early developmental stages of multicellular organisms after fertilization and before birth or hatching.
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