Due to their distinct structural characteristics, derivatives of benzothiazole aniline have become attractive options for developing anticancer drugs. The synthesis and biological assessment of several benzothiazole-substituted aniline compounds are investigated in this work, with an emphasis on the compounds' possible lethal effects on several cancer cell lines. The study elucidates the processes by which these compounds elicit anticancer effects, such as inducing apoptosis, arresting the cell cycle, and inhibiting tumour development. Initial experiments indicate that some derivatives exhibit greater effectiveness when compared to conventional chemotherapeutic drugs, indicating their potential as useful therapeutic substitutes. Furthermore, studies of the structure-activity relationship (SAR) shed light on the molecular characteristics necessary for the biological effectiveness of the compounds. This work establishes the foundation for future research aiming at enhancing the pharmacological characteristics of benzothiazole aniline derivatives while also adding to the chemical library of such compounds. Overall, the results highlight the importance of benzothiazole aniline derivatives as a key area of concentration for the creation of cutting- edge anticancer treatments.