作者:Hiroshi Maruyama、Masao Shiozaki、Tetsuo Hiraoka
DOI:10.1246/bcsj.58.3264
日期:1985.11
3 steps. This azetidinone was further transformed to (3S,4R)-3-[(R)-1-hydroxyethyl]-1-(4-methoxybenzyl)-4-[(phenylthio)-carbonylmethyl]-2-azetidinone (S-Phenyl thioester), a key intermediate for the synthesis of thienamycin and it’s biologically active analogs. Since the thiol part of this S-phenyl thioester can be exchanged easily with other complex or useful thiols under mild conditions, important
L-苏氨酸通过 3 个步骤立体定向地转化为多功能氮杂环丁酮衍生物。该氮杂环丁酮进一步转化为 (3S,4R)-3-[(R)-1-羟乙基]-1-(4-甲氧基苄基)-4-[(苯硫基)-羰基甲基]-2-氮杂环丁酮 (S-苯基硫酯),一种合成硫霉素及其生物活性类似物的关键中间体。由于这种 S-苯基硫酯的硫醇部分可以在温和条件下与其他复杂或有用的硫醇轻松交换,因此以高产率获得了用于生产碳青霉烯类似物的重要 S-硫酯前体。