Abstract: Haenamindole (I) possesses benzyl‐hydroxypiperazindione and phenyl‐pyrimidoindole ring systems in the molecule and shows no cytotoxic activities against Hep‐3B, HeLa, K562, and HL60 cell lines and no antimicrobial activities against Escherichia coli, Bacillus cereus, Staphylococcus aureus, and Salmonella enteritidis.