Acetylenic Glucosides from Microglossa pyrifolia1
Abstract From the leaves of MICROGLOSSA PYRIFOLIA Lam. (Asteraceae) four new acetylenic glucosides (1-4) have been isolated. The aglucones 2A and 4A are new polyynes. The aglucone 3A could only be isolated as a mixture of E/Z-isomers in a ratio of 4:1. The structures of 1-4 were elucidated by spectr...
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| Veröffentlicht in: | Planta medica 1992-06, Vol.58 (3), p.266-269 |
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| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Abstract
From the leaves of MICROGLOSSA PYRIFOLIA Lam. (Asteraceae) four new acetylenic glucosides (1-4) have been isolated. The aglucones 2A and 4A are new polyynes. The aglucone 3A could only be isolated as a mixture of E/Z-isomers in a ratio of 4:1. The structures of 1-4 were elucidated by spectroscopic and biochemical methods. Compound 1 shows antibacterial activity. |
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| ISSN: | 0032-0943 1439-0221 |
| DOI: | 10.1055/s-2006-961450 |