atom_id atom_symbol chemical_shift multiplet coupling_constant 38 H 3.81 s NA 39 H 3.81 s NA 40 H 3.81 s NA 41 H 7.03 d 8.9 42 H 7.81 d 8.9 43 H 6.73 s NA 44 H 2.53 d 17.0 45 H 2.97 d 17.0 46 H 4.80 s NA 47 H 1.42 s NA 48 H 1.42 s NA 49 H 1.42 s NA 50 H 1.75 d 12.8 51 H 2.45 ddd 13.6,12.8,3.7 52 H 1.96 d 14.0 53 H 2.23 ddd 14.0,13.6,3.7 54 H 3.73 s NA 55 H 3.73 s NA 56 H 3.73 s NA 57 H 1.38 s NA 58 H 1.38 s NA 59 H 1.38 s NA 60 H 1.23 s NA 61 H 1.23 s NA 62 H 1.23 s NA 63 H 1.21 s NA 64 H 1.21 s NA 65 H 1.21 s NA 66 H 7.81 d 8.9 67 H 7.03 d 8.9