The study of mass spectral behaviour (EI,DCI, ESI) of several known avermectins allowed us to charcterize the structures of two unknown molecules. Rhe new avermectins are: 25-de(1-methylpropyl)-25-(1-ethylpropyl) and 12-demethyl-12-ethyl derivates of ivermectin B1a. Data were confirmed by NMR spectroscopy.
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Titolo: | Mass Spectrometry of Avermectins. Structure Determination of two new Derivatives of Ivermectin B1a |
Autori: | |
Data di pubblicazione: | 1999 |
Abstract: | The study of mass spectral behaviour (EI,DCI, ESI) of several known avermectins allowed us to charcterize the structures of two unknown molecules. Rhe new avermectins are: 25-de(1-methylpropyl)-25-(1-ethylpropyl) and 12-demethyl-12-ethyl derivates of ivermectin B1a. Data were confirmed by NMR spectroscopy. |
Handle: | http://hdl.handle.net/11571/126540 |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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