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Microwave-assisted synthesis of biologically relevant steroidal 17-exo-pyrazol-5'-ones from a norpregnene precursor by a side-chain elongation/heterocyclization sequence
Multistep syntheses of novel 17β-pyrazol-5'-ones in the Δ(5)-androstane series were efficiently carried out from pregnenolone acetate. A steroidal 17-carboxylic acid was first synthesized as a norpregnene precursor by the bromoform reaction and subsequent acetylation. Its CDI-activated acylimid...
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| 出版年: | Beilstein J Org Chem |
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| 主要な著者: | , , , , , , |
| フォーマット: | Artigo |
| 言語: | Inglês |
| 出版事項: |
Beilstein-Institut
2018
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| 主題: | |
| オンライン･アクセス: | https://ncbi.nlm.nih.gov/pmc/articles/PMC6204839/ https://ncbi.nlm.nih.gov/pubmed/30410620 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.3762/bjoc.14.236 |
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