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Table 2 1H NMR and 13C NMR chemical shifts (δ/ppm) of (2) and (3) DMSO-d 6 as the solvents (25°C)

From: Anti-inflammatory new coumarin from the Ammi majus L

Position DMSO-d 6
  2 3
  1 H 13 C 1 H 13 C
1 - - - -
C2(C = O) - 162.5 - 161.8
C3 6.29s 113.2 7.95d 117.05
C4 - 152.6 6.72d 147.3
C5 6.62d 109.3 5.35d 113.4
C6(OH) 6.43d 143.7 6.25d 143.6
C7 - 146.8 - 146.2
C8 6.82d 104.9 6.80d 104.2
C9 - 147.5 - 149.7
C10 - 112.5 - 111.3
C11(CH3) 2.45s 19.8 - -
C12(OCH3) 3.84s 56.3 3.79s 56.1