10.1021/jm00384a019
The study investigates the synthesis and biological effects of various 2-(p-n-butylanilino)purine derivatives and their nucleoside analogues. The chemicals involved include N2-(p-n-butylphenyl)guanine (BuPG) and 2-(p-n-butylanilino)adenine (BuAA), which were synthesized and tested for their inhibitory effects on mammalian DNA polymerase α, cell growth, and macromolecule synthesis. The study also explores the synthesis of 6-substituted analogues, such as 2-(p-n-butylanilino)-6-chloropurine (BuAC1), and their nucleoside derivatives. These compounds were found to inhibit DNA polymerase α, with the most potent being the 6-methoxy and 6-methylthio derivatives. The study also examines the effects of these compounds on DNA and RNA synthesis in HeLa cell cultures, revealing that some derivatives significantly inhibited these processes. Additionally, selected compounds were tested for antitumor activity in mice, with results indicating that while some compounds showed cytotoxic effects, none demonstrated significant antitumor activity in the P-388 lymphocytic leukemia model. The study provides insights into the structure-activity relationships of these purine analogues and their potential as anticancer agents.