The determination of molecular formulae of polyols by mass spectrometry of their trimethylsilyl ethers; the structure of the macrolide antibiotic filipin.
โ Scribed by B.T. Golding; R.W. Rickards; M. Barber
- Publisher
- Elsevier Science
- Year
- 1964
- Tongue
- French
- Weight
- 431 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0040-4039
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๐ SIMILAR VOLUMES
Complete mass spectra of the pertrimethylsilylated derivatives of three high molecular weight polyene macrolide antibiotics are reported for the first time. The fragmentation pathways which are proposed have been corroborated by the stable isotope derivatives d,-TMS and d,-acetyl. Accurate mass meas
Loss of the A ring in the electron-impact mass spectra of the trimethylsilyl (TMS) derivatives of several cholesterol oxidation products is accompanied by intramolecular migration of the 3-O-TMS group to the charge-retaining portion of the molecule. Linked-scan techniques (B/E and B(2)/E) were used