作者:Naoki Ashida、Kousuke Ida、Yumi Koide、Christopher J. Vavricka、Minoru Izumi、Hiromasa Kiyota
DOI:10.1080/14786419.2020.1809398
日期:2022.4.3
Abstract Thelepamide, an unique ketide-amino acid isolated from a marine annelid worm Thelepus crispus, has a unique oxazolidinone ring derived from cysteine, glycine and valine. Rareness in nature as well as promising bioactive possibility make the oxazolidinone ring an attractive synthetic target. The hydroxy oxazolidinone fragment of thelepamide was prepared by acid-catalysed N,O-acetal formation
摘要 Thelepamide 是一种从海洋环节动物蠕虫Thelepus crispus中分离出来的独特的酮化合物氨基酸,具有源自半胱氨酸、甘氨酸和缬氨酸的独特恶唑烷酮环。自然界中的稀有性以及有希望的生物活性使恶唑烷酮环成为有吸引力的合成靶标。Thelepamide 的羟基恶唑烷酮片段通过酸催化的酮酰胺和甲醛之间的N , O-缩醛形成来制备。在格氏条件下,内酯-羰基选择性异丙基加成恶唑烷二酮也形成目标化合物。