作者:Kim Goldenstein、Thomas Fendert、Peter Proksch、Ekkehard Winterfeldt
DOI:10.1016/s0040-4020(00)00342-2
日期:2000.6
Several enantiopure spiroisoxazoline amides were prepared from tert-butylester 22, which is obtained via an enantiotopic groups differentiating high pressure Diels–Alder cycloaddition. Treatment of these amides with an isoxazoline-splitting enzyme, which is involved in an injury induced defense reaction of the sponge Aplysina cauliformis, proves the bromoatoms in the cyclohexenone moiety to be important
从叔丁基酯22制备了几种对映体纯的螺异异唑啉酰胺,它们是通过区分高压Diels-Alder环加成反应的对映体基团获得的。用异恶唑啉分解酶处理这些酰胺,参与海绵诱导的海绵状Aplysina的损伤诱导防御反应,证明环己烯酮部分中的溴原子对酶结合很重要,而N-H键的存在结果证明,单烷基酰胺对于环裂是必不可少的。讨论了这些结果与环分裂机理的相关性。