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

Table 1 1 H and 13 C NMR spectroscopic data for phenylethanoid glycosides 1 and 2 (MeOH- d, 4 30 °C).Atom12δ 1H (J in Hz)δ 13Cδ 1H (J in Hz)δ 13CAglycone1131.7131.626.71 d (2.1)117.36.71 d (2.1)117.33146.2146.24144.8144.856.68 d (8.0)116.56.68 d (8.0)116.466.57 dd (8.0,121.46.58 dd (8.0,121.42.0)2.1)72.79 t (7.4)36.72.80 m36.784.03 m, 3.73 m72.54.04 m, 3.74 m72.5Glc1 04.38 d (7.9)104.34.39 d (7.9)104.32 03.39 dd (9.2,76.33.39 dd (9.1,76.37.9)7.9)3 03.81 t (9.2)81.73.81 t (9.3)81.74 04.98 dd (9.9,70.95.00 dd (10.0,70.79.3)9.4)5 03.77 m74.93.77 m74.96 03.91 dd (11.5,69.53.94 dd (11.6,69.52.5)2.4)3.64 m3.64 dd (11.7,5.4)3 0 -O -Rha15.18 d (1.8)103.15.18 d (1.8)103.123.91 dd (3.3,72.43.91 dd (3.3,72.51.8)1.8)33.56 dd (9.6,72.23.57 dd (9.7,72.23.3)3.3)43.28 m73.93.28 m73.953.55 m70.53.55 dd (9.5,70.56.2)61.08 d (6.2)18.51.08 d (6.2)18.54 0 -O -caffeoylOE6.27 d (15.9)114.86.27 d (15.9)114.9β7.59 d (15.9)148.37.60 d (15.9)148.3CO168.6168.61127.8127.827.05 d (2.1)115.47.05 d (2.1)115.43146.9146.94149.9149.956.78 d (8.2)116.66.78 d (8.2)116.666.96 dd (8.3,123.36.96 dd (8.2,123.32.1)2.1)6 0 -O -Glc14.33 d (7.7)104.54.30 d (7.7)104.823.25 dd (9.0,75.03.20 dd (9.1,75.27.8)7.7)33.46 m76.33.34 m77.943.52 m80.63.28 m71.653.32 m76.63.23 m78.063.83 (2H, m)61.93.83 dd (12.0,62.82.3)3.64 dd (11.9,5.4)4Glc - O -6 0 -O -14.36 d (7.9)104.7Glc23.21 dd (8.9,75.07.9)33.36 m77.943.32 m71.453.33 m78.263.85 m62.53.66 m