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rdf:type
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Description
| - 9-Boc-6-chloropurine, which can be obtained in high yield, is nearly quantitatively reduced with the THF?BH3 complex. The obtained 9-Boc-7,8-dihydropurine derivative is more stable compared to the corresponding 9-tritylpurine and can be smoothly N7-alkylated, acylated, or it can serve as an N-nucleophile in conjugate additions. Deprotection with trifluoroacetic acid followed by MnO2 oxidation affords the N7-substituted purines in high yields. The whole sequence of alkylation, deprotection, and oxidation can be done with crude intermediates using chromatography only for the purification of the final N7-substituted purine.
- 9-Boc-6-chloropurine, which can be obtained in high yield, is nearly quantitatively reduced with the THF?BH3 complex. The obtained 9-Boc-7,8-dihydropurine derivative is more stable compared to the corresponding 9-tritylpurine and can be smoothly N7-alkylated, acylated, or it can serve as an N-nucleophile in conjugate additions. Deprotection with trifluoroacetic acid followed by MnO2 oxidation affords the N7-substituted purines in high yields. The whole sequence of alkylation, deprotection, and oxidation can be done with crude intermediates using chromatography only for the purification of the final N7-substituted purine. (en)
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Title
| - Highly Efficient and Broad-Scope Protocol for the Preparation of 7-Substituted 6-Halopurines via N9-Boc-Protected 7,8-Dihydropurines
- Highly Efficient and Broad-Scope Protocol for the Preparation of 7-Substituted 6-Halopurines via N9-Boc-Protected 7,8-Dihydropurines (en)
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skos:prefLabel
| - Highly Efficient and Broad-Scope Protocol for the Preparation of 7-Substituted 6-Halopurines via N9-Boc-Protected 7,8-Dihydropurines
- Highly Efficient and Broad-Scope Protocol for the Preparation of 7-Substituted 6-Halopurines via N9-Boc-Protected 7,8-Dihydropurines (en)
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skos:notation
| - RIV/60461373:22310/12:43892738!RIV13-GA0-22310___
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http://linked.open...avai/predkladatel
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GA203/09/1552), P(LC06070), S
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22310/12:43892738
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - reduction; nucleobases; Michael addition; acylation; alkylation (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - DE - Spolková republika Německo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Dvořák, Dalimil
- Tobrman, Tomáš
- Kotek, Vladislav
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issn
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number of pages
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http://bibframe.org/vocab/doi
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http://localhost/t...ganizacniJednotka
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is http://linked.open...avai/riv/vysledek
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