2,6-Diaminopurine

2,6-Diaminopurine (CAS 1904-98-9) is a high-purity nucleobase analog engineered for antiviral drug development, oligonucleotide research, and kinase inhibitor synthesis. This electron-rich purine scaffold features dual amino groups at C2 and C6 positions, enabling triple hydrogen-bonding capacity with thymine—offering enhanced binding affinity compared to natural adenine. The 2,6-diamino substitution pattern serves as a versatile platform for N9-glycosylation to access nucleoside analogs (e.g., ganciclovir precursors), while the amino groups enable selective acylation, alkylation, or diazotization for further diversification. This intermediate is particularly valuable for constructing antisense oligonucleotides with improved hybridization stability, antiviral therapeutics targeting viral DNA polymerases, and ATP-competitive kinase inhibitors where precise hydrogen-bonding geometry dictates target selectivity. Manufactured under controlled conditions, it supports drug discovery programs requiring modular access to functionalized purine architectures with enhanced base-pairing properties .