Relationship advice: Studying the structure–activityrelationships of gentisides revealed that the length of the alkyl chain, number and position of hydroxy groups on the benzene ring, and the type of linker between the benzene ring and alkyl chain have significant effects on their neuritogenic activities. Tetradecyl 2,3‐dihydroxybenzoate (ABG‐001) was the most promising lead compound, inducing significant