Table 1 1 H and 13 C NMR data for 7 in Seasonal variation of phenolic compounds in Zostera marina (Zosteraceae) from the Baltic Sea

Table 1 1 H and 13 C NMR data for 7 ′′,8 ′′ -didehydrosalvianolic acid B (21) (measured in CD OD). a. 3
No.δHδCNo.δHδC1120.31′′121.92129.42′′7.36 1H, d (2.1)116.23143.63′′146.34145.94′′149.056.83 1H, m112.85′′6.83 1H, m116.367.55 1H, d (8.5)125.06′′7.31 1H, d (8.1, 2.1)122.278.30 1H, d (15.7)144.67′′160.086.36 1H, d (15.7)115.78′′109.19168.39′′167.01′129.41′′′128.42′6.78 1H, d (1.9)117.52′′′6.55 1H, d (2.0)117.73′146.13′′′145.84′145.24′′′145.15′6.69 1H, d (8.0)116.35′′′6.53 1H, d (8.1)116.26′6.67 1H, dd (8.0, 1.9)122.06′′′6.32 1H, dd (8.1, 2.0)122.37′3.08 2H, m37.97′′′2.99 2H, d (6.1)37.58′5.20 1H, dd (8.1, 4.7)75.18′′′5.31 1H, t (6.1)76.49′174.19′′′172.9
a Spectra were referenced to solvent residual and solvent signals at 3.31 ppm (1 H NMR, 400 MHz) and 49.0 ppm (13 C NMR, 100 MHz), respectively.