N-alkylation of purines with alkyl esters of phosphorus oxy acids.
D000225:Adenine / Q000031:analogs & derivatives; D000478:Alkylation; D055598:Chemical Phenomena; D002621:Chemistry; D004952:Esters; D010756:Phosphoric Acids; D011687:Purines; D013805:Theobromine; D013806:Theophylline; D014970:Xanthines
D004952:Esters; D010756:Phosphoric Acids; D011687:Purines; D014970:Xanthines; D013806:Theophylline; D000225:Adenine; D013805:Theobromine