1H-1-乙基坎地沙坦西雷塞替尔是一种在坎地沙坦西雷塞梯(HY-17505)的散装制剂中发现的潜在杂质。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
坎地沙坦酯 | candesartan cilexetil | 145040-37-5 | C33H34N6O6 | 610.67 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
2-去乙氧基-2-羟基-1H-1-乙基坎地沙坦西来替昔酯 | 1-[[(cyclohexyloxy)carbonyl]oxy]ethyl 3-[[2'-(1-ethyl-1H-tetrazol-5-yl)biphenyl-4-yl]methyl]-2-oxo-2,3-dihydro-1H-benzimidazole-4-carboxylate | 1185255-99-5 | C33H34N6O6 | 610.67 |
All principal candesartan cilexetil impurities and/or degradation products were synthesized and identified. The differentiation of N-1 and N-2 ethylated candesartan cilexetil derivatives was performed using 1D and 2D NMR experiments. The influence of the magnetic field on the resolution and sensitivity of NMR experiments is shown. Selective hydrolysis of these compounds then provided corresponding producrs of hydrolysis of the ethoxy group.