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Stereochemical Control in the Still-Wittig Rearrangement Synthesis of Cyclohexyl (Z)-Alkene Inhibitors of Pin1
Fig 4
Determination of the (Z)-alkene stereochemistry of intermediate (2R,5S)-6.
The 1D nOe 1H NMR. Irradiation of 1Hf shows an nOe at 1Hm and not at 1Hh.
doi: https://doi.org/10.1371/journal.pone.0139543.g004