. . "1523-7060" . . "22310" . "24" . . "Selective synthesis of 7-substituted purines via 7,8- dihydropurines" . . "RIV/60461373:22310/10:00023073!RIV11-GA0-22310___" . "Chud\u00EDkov\u00E1, Nad\u011B\u017Eda" . "Nucleoside analogs; Alkylation; N7 substituted purines; 6-Chloropurine; Asmarines"@en . "A simple and efficient protocol for the preparation of 7-substituted purines is described. 6- And 2,6-dihalopurines were N9-tritylated and then transformed to 7,8-dihydropurines by DIBAL-H. Subsequent N7-alkylation followed by N9-trityl deprotection with trifluoroacetic acid was accompanied by spontaneous reoxidation, which led to the 7-substituted purines at 55?88% overall isolated yields." . . "Selective synthesis of 7-substituted purines via 7,8- dihydropurines"@en . . "A simple and efficient protocol for the preparation of 7-substituted purines is described. 6- And 2,6-dihalopurines were N9-tritylated and then transformed to 7,8-dihydropurines by DIBAL-H. Subsequent N7-alkylation followed by N9-trityl deprotection with trifluoroacetic acid was accompanied by spontaneous reoxidation, which led to the 7-substituted purines at 55?88% overall isolated yields."@en . "Tobrman, Tom\u00E1\u0161" . "P(GA203/09/1552), P(LC06070)" . . "Kotek, Vladislav" . . "000285081300033" . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "12" . . "RIV/60461373:22310/10:00023073" . . . "4"^^ . . . . . "4"^^ . . "286805" . . . "4"^^ . . "Selective synthesis of 7-substituted purines via 7,8- dihydropurines"@en . "Dvo\u0159\u00E1k, Dalimil" . . "Selective synthesis of 7-substituted purines via 7,8- dihydropurines" . "Organic Letters" . "[D620E03787E2]" .