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Structural Determination of Cyclitol Derivatives by Fast‐atom Bombardment Tandem Mass Spectrometry by Ji Hye Gil; JungJu Seo; Kang‐Jin Kim; Jee H. Jung; Ok‐Sang Jung; Min‐Sun Kim; Jongki Hong is a Chemistry article available to read on EtoBox.
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## Abstract Three cyclitol derivatives were isolated from the marine sponge __Sarcotragus__ sp. by reversed‐phase high‐performance liquid chromatography and analyzed by fast‐atom bombardment mass spectrometry (FAB‐MS). Their structural elucidation was carried out with FAB tandem mass spectrometry (FAB‐MS/MS). FAB‐MS spectra produced a significant abundance of the sodium adducts [M+Na]^+^ and [M+2Na–H]^+^ from a mixture of __m__‐NBA and NaI. In addition, trifluoroacetylation of the cyclitol derivatives was used for confirmation of the presence of the cyclitol ring. High abundance [M–5H+5CF~3~CO+Na]^+^ ions were observed in the FAB‐MS spectra of the trifluoroacetyl‐cyclitol derivatives. Collision‐induced dissociation (CID) of the [M+Na]^+^ ions produced diverse product ions via a series of dissociative processes. Charge‐remote fragmentation (CRF) patterns of [M+Na]^+^ ions were very useful for the identification of product ions which are characteristic for the cyclitol ring and long hydrocarbon chains substituted at the glycerol backbone. Moreover, the CID‐MS/MS spectra of the [M+Na]^+^ ions yielded characteristic product ions at __m/z__ 53, 83, 113, 155 and 171 for the cyclitol moie
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- Author
- Ji Hye Gil; JungJu Seo; Kang‐Jin Kim; Jee H. Jung; Ok‐Sang Jung; Min‐Sun Kim; Jongki Hong
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0951-4198)
- Published
- 2006
- Language
- EN
- Field
- Chemistry (Physical Sciences)