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Indazoles are a very important group of nitrogen-containing heterocycles with a wide range of biological and medicinal applications. These properties make them highly attractive for drug development, particularly when combined with sulfonamides to enhance their medicinal potential. In this work, we synthesized an indazole-based sulfonamide, namely the 1-((2-chloro-5-methoxyphenyl)sulfonyl)-5-nitro-1H-indazole (3). The reduction of the nitro group of 5-nitroindazole (1) to its corresponding amine was also performed to yield compound (4). Both compounds' structures were elucidated using various spectroscopic techniques such as 1H NMR, 13C NMR, infrared (IR), and high-resolution mass spectrometry (HRMS). Our molecular docking studies suggest that compounds (3) and (4) have a strong affinity for MAPK1, indicating their potential as cancer treatments. [ABSTRACT FROM AUTHOR]