Amides and ketones are fluorinated or hydroxylated in HF-SbF5 in the presence of CCl4 or NBS, reaction occurring at a carbon far located from the functional group.
Reaction of cyclic ketones 2–6 and imines 15–17 in HF/SbF5 in presence of CCl4 yield hydroxy or fluoroderivatives, hydride abstraction occurring at a site located far from the functional group. Whereas ketones 2–5 yield only hydroxy derivatives, through cyclic carboxonium ion, imines 15, 16 N-protonated in the media conditions give only fluoroderivatives 18, 19, respectively, after quenching with HF–pyridine
Polymer-supported methyltrioxorhenium (MTO) systems are efficient catalysts for the oxidative functionalisation of cyclohexane and cyclopentane derivatives with H2O2 as oxygen donor. Using poly(4-vinyl)pyridine and poly(4-vinyl)pyridine-N-oxide as MTO supports, cycloalkanol, cycloalkanediol, cycloalkanone and ω-hydroxy methyl ketone derivatives were obtained in different yields depending on the experimental
聚合物负载的甲基三氧合hen(MTO)系统是用于以H 2 O 2为氧供体的环己烷和环戊烷衍生物的氧化功能化的有效催化剂。使用聚(4-乙烯基)吡啶和聚(4-乙烯基)吡啶-N-氧化物作为MTO载体,取决于实验条件,以不同的产率获得了环烷醇,环烷二醇,环烷酮和ω-羟基甲基酮衍生物。有趣的是,当用聚苯乙烯微囊化的MTO催化剂进行氧化时,以可接受的收率以良好的收率选择性回收环烷二聚体。所述EPR调查表明,CH的均裂3 -Re键与地层的CH 3 自由基发生在聚苯乙烯胶囊内部,表明甲基自由基可能在环烷二聚途径中发挥作用。
[EN] NOVEL PSYMBERIN DERIVATIVES, COMPOSITIONS, AND THEIR USE AS ANTINEOPLASTIC AGENTS<br/>[FR] NOUVEAUX DÉRIVÉS ET COMPOSITIONS DE PSYMBÉRINE ET LEUR UTILISATION EN TANT QU'AGENTS ANTINÉOPLASIQUES
申请人:SCHERING CORP
公开号:WO2009158381A1
公开(公告)日:2009-12-30
The present invention provides compounds according to Formula (I): or pharmaceutically acceptable salts, solvates, esters, prodrugs, tautomers, and isomers thereof, wherein: ring A, n, q, R1, R2, R3, R4, R5, R6, each R7, each R7A, and R8 are each selected independently of each other and as defined herein. The invention also provides pharmaceutical compositions comprising such compounds (optionally in combination with one or more additional active ingredients), and methods for their use in treating or preventing a wide range of cancers.