Apparently, in the NIST database the compound 5-dehydroshikimate should be mapped to KEGG compound C02637, instead of C02652. The reason is that 5-dehydroshikimate belongs to an older nomenclature and is now named 3-dehydroshikimate. The compound 5-dehydroshikimate in the new nomenclature is a non-biologically occurring compound and is not relevant anymore.
Apparently, in the NIST database the compound 5-dehydroshikimate should be mapped to KEGG compound C02637, instead of C02652. The reason is that 5-dehydroshikimate belongs to an older nomenclature and is now named 3-dehydroshikimate. The compound 5-dehydroshikimate in the new nomenclature is a non-biologically occurring compound and is not relevant anymore.