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. 2021 Jan 7;7:615915. doi: 10.3389/fvets.2020.615915

Figure 3.

Figure 3

Chemical structural analysis of PGE1. (A) High-resolution electrospray ionization mass spectroscopy (HRESIMS) of PGE1. HRTOFMS m/z for C20H34O5 [M-H]- calculated 353.2328, found 353.2324. (B) 1H-NMR of PGE1 {chemical shift value: 5.70–5.65 (m, 1H), 5.57–5.53 (m, 1H), 4.13–4.09 (d, J = 6.0 Hz, 1H), 4.06–4.02 (d, J = 9.0 Hz, 1H), 2.74–2.69 (dd, J =18.0, 8.0 Hz, 1H), 2.37–2.33 (q, J = 10.0 Hz, 1H), 2.32–2.28 (t, J = 6.0 Hz, 2H), 2.24–2.18 (dd, J = 18.1, 8.0 Hz, 1H), 2.01–1.97 (m, 1H), 1.61–1.54 (m, 4H), 1.52–1.45 (m, 2H), 1.38–1.18 (m, 15H), 0.90–0.83 (m, 3H) and (C) 13C-NMR{chemical shift value: 214.8 (s), 177.8 (s), 136.9 (d), 131.2 (d), 72.9 (d), 72.0 (d), 54.5 (d), 54.3 (d), 46.0 (t), 37.2 (t), 33.7 (t), 31.7 (t), 28.9 (t), 28.5 (t), 27.3 (t), 26.1 (t), 25.2 (t), 24.4 (t), 22.6 (t), 14.0 (q).} of PGE1 in CDCl3. (D–G) 2-D NMR spectra (HMQC, HMBC, ROSY, and 1H−1H COSY) of PGE1 in CDCl3.