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EnglishC-nucleosides are composed of an aromatic moiety linked to a carbohydrate derivative thanks to a stable carbon-carbon bond rather than a hydrolysable carbon-nitrogen bond present in regular nucleosides. C-nucleosides are generally synthesized by two main approaches. In the first approach heterocyclic bases are built, starting from a functional group introduced at the anomeric position of the carbohydrate. The second approach is based on the direct attachment of aromatic or heterocylic moieties to the protected ribose derivative. Two C-nucleosides, tiazofurin and benzamide riboside, show a potent inhibitory activity against Inosine Monophosphate Dehydrogenase (IMPDH) when converted to their corresponding tiazofurin- and benzamide adenine dinucleotide (TAD and BAD). We will discuss the synthesis of TAD analogues containing a substituent at the C2 of adenine ring that inhibit IMPDH with Ki in 1-10 nM range. We will also report modified BAD analogues with inhibitory activity against NAD kinase and M. tuberculosis enoyl ACP reductase.
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| Titolo: | SYNTHESIS OF NAD ANALOGS AS SELECTIVE INHIBITORS OF INOSINE MONOPHOSPHATE DEHYDROGENASE |
| Autori: | |
| Data di pubblicazione: | 2007 |
| Abstract: | C-nucleosides are composed of an aromatic moiety linked to a carbohydrate derivative thanks to a stable carbon-carbon bond rather than a hydrolysable carbon-nitrogen bond present in regular nucleosides. C-nucleosides are generally synthesized by two main approaches. In the first approach heterocyclic bases are built, starting from a functional group introduced at the anomeric position of the carbohydrate. The second approach is based on the direct attachment of aromatic or heterocylic moieties to the protected ribose derivative. Two C-nucleosides, tiazofurin and benzamide riboside, show a potent inhibitory activity against Inosine Monophosphate Dehydrogenase (IMPDH) when converted to their corresponding tiazofurin- and benzamide adenine dinucleotide (TAD and BAD). We will discuss the synthesis of TAD analogues containing a substituent at the C2 of adenine ring that inhibit IMPDH with Ki in 1-10 nM range. We will also report modified BAD analogues with inhibitory activity against NAD kinase and M. tuberculosis enoyl ACP reductase. |
| Handle: | http://hdl.handle.net/11581/202501 |
| ISBN: | 0000000000 |
| Appare nelle tipologie: | Contributo in atto di convegno su volume |
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