#rdkit symbol shift mult coup 18 H 2.33540713632205 d 7.0 17 H 2.33540713632205 d 7.0 19 H 2.33540713632205 d 7.0 20 H 7.2512351326624 q 7.0 23 H 2.07712717291857 ddd -12.4,0.8,5.2 22 H 2.29313815187557 ddd -12.4,2.0,3.8 24 H 4.01134492223239 dd 2.0,5.2 21 H 5.87273559011894 dd 0.8,3.8 28 H 7.39405306495883 s NA 26 H 3.6185117413845664 s NA 27 H 3.6185117413845664 s NA 25 H 3.6185117413845664 s NA