TP53 and cancer: The interactions of compound 7f with the crystal structure of caspase 9, X-linked inhibitor of apoptosis protein (XIAP), P53 cancer mutant Y220C, and Mouse double minute 2 homolog (MDM2) proteins (PDB code: 1jxq, 3eyl, 5o1h and 4wt2, respectively) were examined using molecular Operating Environment and BIOVIA Discovery Studio programs.