已经研究了1,8-二氮杂双环[5.4.0]十一碳-7-烯(DBU)在二氯乙烷中用无水t-BuOOH(TBHP)对缺电子的烯烃进行环氧化。立体要求高于对碱性H 2 O 2的要求-在其他氧化中,DBU被认为是一种显着的碱,因为其他碱如三乙胺,二异丙基乙胺和1,4-二氮杂双环[2.2.2]辛烷(DABCO)绝对效率低下。DBU可有效促进α,β-不饱和δ-内酯的氧化,而大多数常规方法要么失败要么表现不佳。
KF adsorbed on alumina effectively promotes the epoxidation of electron deficient alkenes by anhydrous t-BuOOH
作者:Veejendra K. Yadav、Kamal K. Kapoor
DOI:10.1016/0040-4020(95)01026-2
日期:1996.3
KF adsorbed on alumina (KF-Al2O3) has been studied in detail for the epoxidation of electron deficient alkenes with anhydrous t-BuOOH. Aqueous base sensitive functional groups survive the reagent. Cyclopentenones are oxidized in decent to quantitative yields without showing any observable aldol products. α,β,γ,δ-Dienones are regioselectively oxidized at the α,β-position. Unlike aqueous alkaline H2O2
已详细研究了吸附在氧化铝上的KF(KF-Al 2 O 3)用于无水叔丁醇对缺电子烯烃的环氧化。碱敏感的含水官能团在试剂中存活。环戊烯酮被适当地氧化至定量产率,而未显示任何可观察到的醛醇产物。α,β,γ,δ-二烯酮在α,β-位被区域选择性氧化。与碱性H 2 O 2水溶液不同,KF-Al 2 O 3是非立体特异性的,并提供顺式和反式的混合物大多数无环烯酮的氧化物。除了α,β-不饱和内酯的氧化和反应速率的差异外,本试剂通常与t-BuOOH-DBU组合相似。
Cancer treatment using curcumin derivatives
申请人:Vander Jagt L. David
公开号:US20060276536A1
公开(公告)日:2006-12-07
Cancer or a precancerous condition is treated by administering a curcumin derivative to a subject.
THERAPEUTIC COMPOSITIONS COMPRISING A COMBINATION OF A HARMINE AND ISOVANILLIN COMPONENT
申请人:Ions Pharmaceutical S.À R.L.
公开号:EP3275465A1
公开(公告)日:2018-01-31
Human therapeutic treatment compositions comprise the combination of at least one harmine component, and at least one isovanillin component, wherein the components of the composition are different. The compositions are effective for the treatment of human conditions, especially human cancers.