Table 2 1H-NMR peaks of meropenem and cefixime metal ion complexes
From: Studies on meropenem and cefixime metal ion complexes for antibacterial activity
Sr. no | Compound name | H-NMR δ (ppm) in DMSO, nature of proton, coupling constant(J) |
|---|---|---|
1 | Mero-Ag | 1.12 (3H,CH-CH3), 1.14, 1.49 (2H,pyrol), 2.81, 2.88 [6H,N(CH3)2] 2.97 (1H, chephem), 3.05 (1H, pyrol) |
2 | Mero-Pd | 2.65, 2.74 [6H, N(CH3)2] |
3 | Mero-Ni | 1.14,1.5 (2H, pyrol), 2.82,2.85 [6H, N(CH3)2], 2.90(1H, chephem) 3.05 (1H, pyrol) |
4 | Cef-Pd | 1H-NMR-6.987(2H,dd, C4H2SN), 4.461 (2H, d, C4H2SN), 5.418(2H,d, -CH2=CH2),5.601(2H,d, –CH=CH2), 6.644 (2H,d,C3H2ON), 6.676 (2H,d,C3H2ON),5.110 (1H,S, -COOH), 9.373 (1H, S,C3HSN), 5.375(1H,S, –NH2) |
5 | Cef-Ag | 1H-NMR-6.882(2H,dd,–CH=CH2), 5.34 (2H,dd, –CH=CH2), 5.316(2H,d,CH=CH2),4.603(2H,d,–C4H2SN), 5.207(2H,d, C4H2SN), 5.581(2H,d,C3H2ON),5.795 (2H,d,–C3H2ON), 7.262 (1H, S,-COOH), 9.571(1H,S, C4H2SN), 6.954(1H,S,-NH2) |
6 | Cef-Zn | 1H-NMR-6.987(2H,dd,–CH=CH2), 5.78 (2H,dd, –CH=CH2), 4.574(2H,d, C4H2SN),5.187(2H,d,–C4H2SN), 5.545(2H,d, C3H2ON), 5.292 (2H,d,C3H2ON), 5.199 (1H,S, -COOH), 9.304 (1H, S,C3HSN), 6.828(1H,S, –NH2) |