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Statements

Subject Item
n2:RIV%2F60461373%3A22310%2F10%3A00023073%21RIV11-GA0-22310___
rdf:type
n13:Vysledek skos:Concept
dcterms:description
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. 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.
dcterms:title
Selective synthesis of 7-substituted purines via 7,8- dihydropurines Selective synthesis of 7-substituted purines via 7,8- dihydropurines
skos:prefLabel
Selective synthesis of 7-substituted purines via 7,8- dihydropurines Selective synthesis of 7-substituted purines via 7,8- dihydropurines
skos:notation
RIV/60461373:22310/10:00023073!RIV11-GA0-22310___
n3:aktivita
n16:P
n3:aktivity
P(GA203/09/1552), P(LC06070)
n3:cisloPeriodika
24
n3:dodaniDat
n6:2011
n3:domaciTvurceVysledku
n9:4876946 n9:6702198 n9:3809684 n9:5078008
n3:druhVysledku
n17:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
286805
n3:idVysledku
RIV/60461373:22310/10:00023073
n3:jazykVysledku
n18:eng
n3:klicovaSlova
Nucleoside analogs; Alkylation; N7 substituted purines; 6-Chloropurine; Asmarines
n3:klicoveSlovo
n4:Asmarines n4:N7%20substituted%20purines n4:6-Chloropurine n4:Nucleoside%20analogs n4:Alkylation
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[D620E03787E2]
n3:nazevZdroje
Organic Letters
n3:obor
n14:CC
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n11:LC06070 n11:GA203%2F09%2F1552
n3:rokUplatneniVysledku
n6:2010
n3:svazekPeriodika
12
n3:tvurceVysledku
Chudíková, Naděžda Tobrman, Tomáš Kotek, Vladislav Dvořák, Dalimil
n3:wos
000285081300033
s:issn
1523-7060
s:numberOfPages
4
n7:organizacniJednotka
22310