They exhibited potent antimalarial activity against chloroquine-sensitive and -resistant Plasmodium falciparum strains in vitro. The structural elucidation was accomplished by a combination of spectroscopic analyses and chemical approaches including a total synthesis of kozupeptin A. Synthetic kozupeptin A demonstrated a therapeutic effect in vivo, and an intermediate exhibited much higher antimalarial
Kozupeptins A和B,新型抗疟疾脂肽,是从Paracamarosporium sp。的培养液中分离得到的。FKI-7019。它们在体外对
氯喹敏感和耐药的恶性疟原虫菌株表现出有效的抗疟疾活性。结构解析是通过光谱分析和
化学方法的结合来完成的,其中包括kozupeptin A的全合成。合成的kozupeptin A在体内显示出治疗效果,并且中间体显示出比kozupeptin A高得多的抗疟活性。