Table 2 1 H and 13 C NMR spectroscopic data for phenylethanoid glycosides 3, 4 and 6 in Phenylethanoid glycosides in tepals of Magnolia salicifolia and their occurrence in flowers of Magnoliaceae

Table 2 1 H and 13 C NMR spectroscopic data for phenylethanoid glycosides 3, 4 and 6 (MeOH- d, 30 °C). 4
Atom346δ 1 H (J in Hz)δ 13Cδ 1 H (J in Hz)δ 13Cδ 1 H (J in Hz)δ 13CAglycone1131.5131.4131.326.72 d (2.0)117.36.71 d (2.1)117.36.69 d (2.1)117.23146.2146.2146.24144.8144.8144.856.69 d (8.0)116.56.68 d (8.0)116.56.67 d (8.1)116.466.58 dd (8.0, 2.0)121.46.57 dd (8.0, 2.1)121.56.56 dd (8.1, 2.1)121.472.82 t (7.4)36.62.82 m36.62.82 m36.684.02 m, 3.74 m72.54.02 m, 3.74 m72.54.02 m, 3.73 m72.4Glc1 04.52 d (7.7)102.94.52 d (7.7)103.04.50 d (7.7)103.02 03.56 m81.03.56 m81.03.55 dd (9.1, 7.8)81.03 03.94 t (9.0)83.03.94 t (9.0)83.13.95 t (9.1)83.24 05.01 t (9.4)71.45.03 t (9.5)71.34.94 t (9.3)71.35 03.76 m75.03.76 m74.93.52 m76.26 03.87 m69.63.91 dd (11.5, 2.5)69.63.59 m62.53.64 m3.62 m3.52 m2 0 -O -Rha14.98 d (1.6)103.04.98 d (1.7)103.04.99 d (1.8)103.123.87 m72.43.87 dd (3.3, 1.7)72.43.87 dd (3.4, 1.7)72.433.65 dd (9.5, 3.3)72.43.65 dd (9.5, 3.4)72.43.66 dd (9.5, 3.4)72.443.42 t (9.6)73.93.42 t (9.6)73.93.42 t (9.6)73.954.00 dd (9.6, 6.1)70.54.00 dd (9.6, 6.2)70.54.01 dd (9.6, 6.2)70.461.27 d (6.2)18.21.27 d (6.2)18.21.27 d (6.2)18.23 0 -O -Rha14.95 d (1.7)103.74.95 d (1.8)103.74.96 d (1.8)103.723.81 m72.63.81 m72.63.81 dd (3.3, 1.8)72.633.58 dd (9.7, 3.4)72.13.58 dd (9.5, 3.4)72.13.58 dd (9.6, 3.3)72.143.30 m73.83.30 m73.83.30 t (9.5)73.853.55 m71.13.55 m71.13.56 m71.061.12 d (6.2)18.51.11 d (6.2)18.51.12 d (6.2)18.54 0 -O -caffeoylOE6.27 d (15.9)115.16.27 d (15.9)115.16.27 d (15.9)115.1β7.57 d (15.9)148.17.57 d (15.9)148.17.57 d (15.9)147.9CO168.6168.6168.51127.8127.8127.827.05 d (2.0)115.47.04 d (2.1)115.47.04 d (2.1)115.33146.9146.9146.94149.9149.9149.956.78 d (8.2)116.66.78 d (8.2)116.66.78 d (8.2)116.666.96 dd (8.3, 2.0)123.36.95 dd (8.2, 2.1)123.36.94 dd (8.1, 2.1)123.26 0 -O -Glc14.33 d (7.8)104.54.29 d (7.7)104.823.24 m75.03.19 dd (9.1, 7.7)75.233.45 m76.23.34 m77.943.51 m80.63.27 m71.653.31 m76.53.22 m78.063.83 (2H, m)61.93.83 m, 3.65 m62.74Glc - O -6 0 -O -Glc14.36 d (7.8)104.723.22 m75.033.36 m77.943.32 m71.453.32 m78.163.85 m, 3.66 m62.5