Rearrangement of suitably constituted aryl, alkyl, or vinyl radicals by acyl or cyano group migration
作者:Athelstan L. J. Beckwith、D. M. O'Shea、Steven W. Westwood
DOI:10.1021/ja00216a033
日期:1988.4
Transposition des bromo-2 benzenepropionates d'ethyle, substitues en α par un groupe acetyl ou cyano, en acetyl-2 et cyano-2 benzenepropionate d'ethyle. Synthese d'oxo-3 cyclanecarboxylates d'alkyle a partir de β-cetoesters; par exemple l'iodomethyl-2 oxo-2 cyclopentanecarboxylate d'ethyle conduit a l'oxo-3 cyclohexanecarboxylate d'ethyle
Transposition des bromo-2 benzopropionates d'ethyle, substitues en α par un groupe acetyl ou cyano, en acetyl-2 et cyano-2 benzopropionate d'ethyle。合成这些 d'oxo-3 cyclanecarboxylates d'alkyle a partir de β-cetoesters; 例如,l'iodomethyl-2 oxo-2 cyclopentanecarboxylate d'ethyle 导管 a l'oxo-3 cyclohexcarboxylate d'ethyle
Model Studies for the Coenzyme-B12-Catalyzed Methylmalonyl?Succinyl Rearrangement. The Importance of Hydrophobic Peripheral Associations
between a vitaminB12 derivative containing a peripheral C18 alkyl chain (see 1a) and a (methyl)thiomalonate substrate bearing alkyl chains of various length at the thioester group (see 5) was investigated. A catalytic cycle was established for the methylmalonylsuccinyl rearrangement by using electrochemistry and photolysis (see Scheme 3). Increased yields of the succinate relative to the reduction product
研究了包含外围C 18烷基链的维生素B 12衍生物(参见1a)与在硫酯基团上带有不同长度烷基链的(甲基)硫代丙二酸酯底物之间的相互作用(参见5)。通过使用电化学和光解作用建立了用于甲基丙二酰基琥珀酰基重排的催化循环(参见方案3)。当反应在MeOH / H 2 O中进行时,并且当底物和催化剂都具有能够进行疏水相互作用的十八烷基取代基时,相对于还原产物,琥珀酸酯的产率相对于还原产物提高了。
PEPTIDE-COMPOUND CYCLIZATION METHOD
申请人:Chugai Seiyaku Kabushiki Kaisha
公开号:US20150080549A1
公开(公告)日:2015-03-19
An object of the present invention is to provide methods of discovering drugs effective for tough targets, which have conventionally been discovered only with difficulty. The present invention relates to novel methods for cyclizing peptide compounds, and novel peptide compounds and libraries comprising the same, to achieve the above object.