Sonochemical 2,3- dideoxygenation of ecdysteroids with the Δ 2(3)- bond generation and activation of the C-C bonds of the steroid core in the poststerone derivatives, that causes the skeletal rearrangement have been carried out for the first time. Thus, the ultrasonically assisted reaction of 2,3-dimesyloxy derivatives of ecdysteroids with the NaI-Zn-DMF system gives rise to their 2,3-dideoxy- Δ 2(3)-analogues
蜕皮类
固醇的声
化学2,3-双脱氧与poststerone衍
生物中的类
固醇核的Δ2 (3)键生成和CC键活化激活,这是首次引起骨骼重排。因此,蜕皮类
固醇的2,3-二
甲磺酰氧基衍
生物与NaI-Zn-
DMF系统的超声辅助反应产生了它们的2,3-二脱氧-Δ2 (3) -类似物,产率为70-92%。在以2,3-二甲基二氧基氧固酮作为初始蜕皮甾类底物的情况下,反应伴随着烯丙基部分的活化和半
频哪醇重排,从而导致C 13 -C 14通过C / D环的收缩/扩展键迁移,并提供了新颖的短链(8 R)-13(14→8)-abeo-异构体。