Efficient methods for the preparation of acetylenic ketones
作者:H.D. Verkruijsse、Y.A. Heus-Kloos、L. Brandsma
DOI:10.1016/0022-328x(88)80002-0
日期:1988.1
A number of acetylenicketones RCCC(O)R′ have been obtained in good yields from lithiated acetylenes RCCLi and acetic anhydride, N,N-dimethylacetamide, or N,N-dimethylbenzamide. The most convenient and general method consists of treating alkynylzinc chlorides with acid halides R′C(O)Cl. Benzoyl chloride (R′ = Ph), acryloyl chloride (R′ = CH2CH), and butynoyl chloride (R′ = C2H5CC) react only
从锂化乙炔RC CLi和乙酸酐,N,N-二甲基乙酰胺或N,N-二甲基苯甲酰胺以良好的产率获得了许多炔酮RC = CC(= O)R′ 。最方便,最通用的方法是用酰基卤R'C(= O)Cl处理炔基氯化锌。苯甲酰氯(R'= Ph),丙烯酰氯(R'= CH 2 = CH )和丁酰氯(R'= C 2 H 5 C = C )仅在催化量的Pd [P(P( Ph)3 ] 4。
HETEROCYCLIC COMPOUND, PREPARATION METHOD AND USE THEREOF IN MEDICINE
申请人:SUZHOU SINOVENT PHARMACEUTICALS CO., LTD.
公开号:US20200347070A1
公开(公告)日:2020-11-05
Provided are a heterocyclic compound, a preparation method and the use thereof in medicine, and particularly involved are a heterocyclic compound for preventing and/or treating hypemricemia and gout, a preparation method and the use thereof in medicine. In particular, provided are a compound as shown in formula (I) and/or formula (II) or a tautomer thereof and a pharmaceutically acceptable salt thereof, a preparation method therefor and a method and the use thereof for treating hypemricemia and gout.
diverse chemical series as PDK1 inhibitors. We focused our medicinal chemistry efforts on 7-azaindoles with low micromolar IC50s (e.g., 16: IC50 = 1.1 μM) in the biochemical PDK1 assay. Our structure-guided optimization efforts considered also PDK1 X-ray structures with weaker binding fragments and resulted in 7-azaindoles with significantly improved biochemical PDK1 potency in the two-digit nanomolar range
A Zinc(II) Catalyst System for the Conia-Ene Reaction of Alkynyl-Aminomalonates Applicable to 5-Endo-Dig Reactions
作者:Wilfried Hess、Jonathan W. Burton
DOI:10.1002/adsc.201100401
日期:2011.11
The zinc(II)-catalyzed 5-exo-dig (Conia-ene) and 5-endo-dig cyclizations of a range of alkynyl-α-aminomalonates give rise to nitrogen heterocycles with good efficiency. The reaction allows the synthesis of a broad range of synthetically useful building blocks.
[EN] POLYMERISABLE COMPOUNDS FOR MAKING OPTO-ELECTRONIC DEVICES<br/>[FR] COMPOSÉS POLYMÉRISABLES POUR FABRIQUER DES DISPOSITIFS OPTOÉLECTRONIQUES
申请人:IMEC INTER UNI MICRO ELECTR
公开号:WO2010000504A1
公开(公告)日:2010-01-07
This invention provides monomeric compounds represented by the structural formula (I) or the structural formula (II) which can be polymerized into crosslinkable polymers useful for producing opto-electronic devices.