due to limited oral bioavailability and metabolic stability. These ADME limitations have been addressed in an improved generation of negative chronotropes, e.g., 4 and 16, which were evaluated as potential clinical candidates.
17(R),18(S)-环氧
二十碳四烯酸(EEQ)是二十碳五烯酸(EPA)的细胞色素P450代谢产物,是新生鼠心肌细胞(NRCM)心律不齐模型中具有低纳摩尔活性的强负性变倍体。先前的研究确定草酰胺2b是一种稳定的可溶性环氧
水解酶(sEH)替代品,但由于口服
生物利用度和代谢稳定性有限,因此不适合用于体内应用。这些A
DME局限性已通过改善负负变时剂(例如4和16)的产生得到解决,这些负变时剂被评估为潜在的临床候选药物。