Mycinamicins, new macrolide antibiotics. IX. Chemical ionization mass spectral studies on mycinamicins.
作者信息
Harada K, Takeda N, Suzuki M, Hayashi M, Ohno M, Satoi S
出版信息
J Antibiot (Tokyo). 1985 Jul;38(7):868-76. doi: 10.7164/antibiotics.38.868.
PMID:4030500
Abstract
Chemical ionization (CI) mass spectra of new macrolide antibiotics, mycinamicins are reported. Protonated molecules (MH+) are observed as base peaks in the CI mass spectra of all components. Fragmentations are mainly restricted to the glycosidic linkages and the resulting aglycone and sugar-derived ions appear regularly in their mass spectra. Moreover, characteristic fragment ions involving carbon-carbon bond fission are found in the CI mass spectra of the epoxyenone-containing components, mycinamicins I (1) and II (2). The mechanism for the formation of the ion species is also discussed.
摘要
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