#rdkit symbol shift mult coup 18 H 2.3455626715462032 d 7.0 19 H 2.3455626715462032 d 7.0 17 H 2.3455626715462032 d 7.0 20 H 7.25233302836231 q 7.0 23 H 2.07676120768527 ddd -12.4,1.4,4.0 22 H 2.29286367795059 ddd -12.4,1.4,4.8 24 H 4.01180237877402 dd 1.4,4.8 21 H 5.87246111619396 dd 1.4,4.0 28 H 7.3935956084172 s NA 26 H 3.6187252211039933 s NA 25 H 3.6187252211039933 s NA 27 H 3.6187252211039933 s NA