Filtry
Study of Direct N7 Regioselective tert-Alkylation of 6‑Substituted Purines and Their Modification at Position C6 through O, S, N, and C Substituents
A new N7 direct regioselective method allowing the introduction of tert-alkyl groups into the appropriate 6-substituted purine derivatives is developed. This method is based on a reaction using N-trimethylsilylated purines ...
Organic chemistry
- 2024 •
- Jimp •
- Odkaz
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Jimp - Článek v periodiku v databázi Web of Science
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Synthesis of 8-amino and 8-substituted amino derivatives of acyclic purine nucleoside and nucleotide analogs. Alkylation of 8-substituted purine bases.
Two synthetic approaches were used for preparation of 8-amino-, 8-methylamino-, and 8-dimethylaminoadenine and -guanine analogs of PME and HPMP series: (a) direct modification of 8-bromopurine acyclic nucleotide analogs at the 8-position of the base,...
CC - Organická chemie
- 2001 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Selective synthesis of 7-substituted purines via 7,8- dihydropurines
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-tr...
CC - Organická chemie
- 2010 •
- Jx
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Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Transformation of 8-[(2-hydroxyalkyl)sulfanyl]adenines to 6-amino-7 H -purin-8(9 H )-one derivatives.
Alkylation of 6-amino-7 H -purin-8(9 H )-thione with ( R )-[(trityloxy)methyl]oxirane gave its S -alkyl derivative which was converted to the 6-amino-7 H -purin-8(9 H )-one of N 9 -monoalkyl and N 7 , N 9 -dialkyl ...
CC - Organická chemie
- 2001 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Cross-coupling reactions of 2-amino-6-halopurine derivatives with organometallic reagents leading to 6-alkylated purine acyclic nucleotide analogues.
Original scientific paper dealing with Cross-coupling reactions of 2-amino-6-halopurine derivatives with organometallic reagents leading to 6-alkylated purine acyclic nucleotide analogues....
CC - Organická chemie
- 1999 •
- D
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D - Stať ve sborníku
Synthesis of base substituted 2-hydroxy-3-(purin-9-yl)-propanoic acids and 4-(purin-9-yl)-3-butenoic acids.
This article describes synthesis of racemic base-modified 3-(purin-9-yl)-2-hydroxypropanoic acids, mainly 6-substituted purine and 2-aminopurine derivatives....
CC - Organická chemie
- 2003 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Synthesis and cytostatic activity of N -[2-(phosphonomethoxy)alkyl]derivatives of N 6 -substituted adenines, 2,6-diaminopurines and related compounds.
N 6 -Substituted adenine and 2,6-diaminopurine derivatives of 9-[2-phosphonomethoxy)ethyl] and 9-[( R )-2-(phosphonomethoxy)propyl] series were synthesized by reactions of amines with 6-chloro-9-{[2-(diisopropoxyphosphoryl)methoxy]alkyl}...
CC - Organická chemie
- 2001 •
- Jx
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Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Phosphorylation of purine (phosphonomethoxy)alkyl derivatives by mitochondrial AMP kinase (AK2 type) from L1210 cells.
Annotation not available...
CE - Biochemie
- 2000 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Tricyclic purine analogs derived from 2-amino-6-chloropurine and 2,6-diaminopurine and their methylated quaternary salts
A novel series of tricyclic etheno bridged analogs of purines was syntesized with particular focus on the regioselectivity of the cyclization reaction and on the fluorescence properties. Additionally, corresponding methylated quaternary salt...
CC - Organická chemie
- 2006 •
- Jx
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Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Synthesis of (Purin-6-yl)methylphosphonate Bases and Nucleosides
Three approaches to the synthesis of the title (purin-6-yl)methylphosphonates were investigated and compared. While, the Arbuzov reaction of 6-(iodomethyl)purines with triethyl phosphite did not work, Michaelis?Becker alkylation...
CC - Organická chemie
- 2010 •
- Jx
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Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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