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. 2005 Sep;71(9):5066–5076. doi: 10.1128/AEM.71.9.5066-5076.2005

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Copyright © 2005, American Society for Microbiology

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FIG. 7. — GC-MS analysis of the trimethylsilylated derivatives of authentic 2-epi-5-epi-[6-²H₂]valiolone and the ValA reaction product. A, total ion chromatogram of the authentic tetratrimethylsilyl-2-epi-5-epi-[6-²H₂]valiolone (Rt = 8.60 min); B, TIC chromatogram of ValA reaction product, tetratrimethylsilyl-2-epi-5-epi-valiolone (Rt = 8.63 min); C, electron ionization mass spectrometry fragmentation pattern of tetratrimethylsilyl-2-epi-5-epi-[6-²H₂]valiolone; D, EI-MS fragmentation pattern of ValA reaction product tetratrimethylsilyl-2-epi-5-epi-valiolone. UI, unidentified impurities.