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. 2020 Sep 29;18(10):497. doi: 10.3390/md18100497

Figure 4.

Figure 4

CID-Spectra of amphidinols (AM) were detected in this study. The primary fragment occurring in all AM resulting from the C1/C1′ cleavage at the α-position of the tetrahydropyran ring B is framed, other fragment pairs are shown in corresponding colors. (a) AM-22, tR = 2.60 min, strain DN241EHU and CCMP1314; (b) LS-A, tR = 2.58 min, strain ACRN02; (c) LP-B/C, tR = 2.23 min, strain ACRN02; (d) putatively CAR-E, tR = 2.52 min, strain ACRN02; (e) putatively AM-4, tR = 2.62 min, strain ACRN02. tR = retention time.