LEARN 2D NMR REAL WAY, VIA A SITAGLIPTIN IMPURITY

 

A SITAGLIPTIN IMPURITY

1H NMR (500 MHz, CDCl3) δ = 1.85 (s, 2H), 2.39 (s, 2H), 2.56 (s, 2H), 4.05 (m, 4H), 4.81 (d, J = 25.02 Hz, 2H), 6.76 (s, 1H), 6.93 (s, 1H). 

13C NMR (125 MHz, CDCl3) δ = 24.7, 27.5, 31.9, 37.9, 42.2, 43.3, 105.2, 117.8, 124.6, 145.4, 147.7, 149.9, 150.8, 154.6, 156.9, 171.3.

1HNMR CDCL3

13C NMR CDCL3

13C DEPT NMR CDCL3

H H COSY NMR CDCL3

HSQC NMR CDCL3

HMBC NMR CDCL3