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The value of universally available raw NMR data for transparency, reproducibility, and integrity in natural product research.

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Figure

Fig. 3 1 H – 13 C HMBC NMR spectrum of pseudopyronine B (4); insert show details of the 160 ppm region.
Fig. 5 Comparison of the results of typical 1 H NMR processing with spectrometer default settings (exponential multiplication [EM] with LB
Fig. 7 Down field portion of the 1 H NMR spectra of the authentic natural product (A), 64 synthetic [ D -Hiva 2 ], [ D -MeAla 11 ]-coibamide (B), 153 all- L - -coibamide (C), 68 and [ D -MeAla 11 ]-all- L -coibamide (D)
Fig. 8 Simulation of the H2 multiplet (3.99 ppm) of aldingenin B with J 1a,2 ¼ 11.2 Hz and J 1b2 ¼ 4.8 Hz (apparent constants: 9.6 and 6.3 Hz, reported by Crimmins et al
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