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. 2017 Jun 12;15(6):171. doi: 10.3390/md15060171

Figure 2.

Figure 2

Deviation between experimental and computed shift (ppm) in 1, 2, and deprotonated 2. Deviations outside of acceptable values are indicated with bold and italics. Deviations below 0.2 ppm (1H) and 3.0 ppm (13C) are excluded for clarity.