Aurilide (1), a novel cyclodepsipeptide isolated from the Japanese sea hare Dolabella auricularia, was enantioselectively synthesized, and the present result unambiguously confirmed its stereostructure. In addition, the cytotoxicity of 1 was evaluated by employing synthetic 1.
The bioassay-guided fractionation of the cytotoxic constituents of the Japanese seahare Dollabella auricularia led to the isolation of aurilide (1), a 26-membered cyclodepsipeptide. The gross structure of 1 was established by spectroscopic analysis including 2D NMR techniques. The absolute stereostructure was determined by chiral HPLC analysis of acid hydrolysates of 1 and by the enantioselective
对日本海兔Dollabella auricularia的细胞毒性成分进行生物测定指导的分馏,导致分离出26个成员的环二肽aurilide(1)。通过包括2D NMR技术的光谱分析来确定1的总体结构。通过对1的酸水解产物进行手性HPLC分析并通过对映选择性合成由二羟基化脂肪酸部分产生的降解产物来确定绝对立体结构。的对映选择性合成1在12%的总收率(16步)来实现,并确认的绝对立体结构1。1的细胞毒性使用合成样品评估细胞毒性,发现合成样品对HeLa S 3细胞表现出强大的细胞毒性,IC 50为0.011μg/ mL。的进一步的生物学和药理学研究1已经通过使用合成的进行1。