Anellation and Ring Transformations of Push-pull-functionalized Deoxypyranosiduloses
Reaction of (E)-3-aminomethylene-α-D-erythro-hexopyranosid-2-ulose 5 with substituted 5- aminopyrazoles afforded the pyrano-anellated pyrazolo[1,5-a]pyrimidines 8. The treatment of the corresponding (E)-2-aminomethylene-α-D-erythro-hexopyranosid-3-ulose 6 with 5-aminopyrazoles and (benzimidazol-2-yl...
| Published in: | Zeitschrift für Naturforschung B |
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| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Walter de Gruyter GmbH
2009
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1515/znb-2009-0613 https://www.degruyter.com/view/journals/znb/64/6/article-p676.xml https://www.degruyter.com/document/doi/10.1515/znb-2009-0613/xml https://www.degruyter.com/document/doi/10.1515/znb-2009-0613/pdf |
| Summary: | Reaction of (E)-3-aminomethylene-α-D-erythro-hexopyranosid-2-ulose 5 with substituted 5- aminopyrazoles afforded the pyrano-anellated pyrazolo[1,5-a]pyrimidines 8. The treatment of the corresponding (E)-2-aminomethylene-α-D-erythro-hexopyranosid-3-ulose 6 with 5-aminopyrazoles and (benzimidazol-2-yl)acetonitrile yielded in a ring transformation process the D-erythronoyl-pyrazolo[ 1,5-a]pyrimidine-3-carbonic acid derivatives 10 and D-erythronoyl-pyrido[1,2-a]benzimidazole- 4-carbonitrile (12), respectively |
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