Molecular structure and pretilt control of photodimerized-monolayers (PDML)
作者:Jawad Naciri、Devanand K. Shenoy、Kirsten Grüeneberg、Ranganathan Shashidhar
DOI:10.1039/b403656e
日期:——
We have studied the alignment of nematic liquid crystals on photo-sensitive chemisorbed monolayers. Surface modification and a single UV exposure at normal incidence resulted in photo-dimerized monolayers. A uniform, planar alignment of liquid crystals is realized on these surfaces. Chemical modification of the photo-sensitive chromophores of the monolayer allow fine-tuning of the pretilt. For a given alignment layer, there is a good correlation between the value of the pretilt and the polar properties of the liquid crystal used. Furthermore, the value of the pretilt depends on the chemical functionality at the outermost portion of the photo-alignment layer.
[EN] PIPERAZINE DERIVATIVES AS HIV PROTEASE INHIBITORS<br/>[FR] DÉRIVÉS DE PIPÉRAZINE UTILISÉS EN TANT QU'INHIBITEURS DE LA PROTÉASE DU VIH
申请人:MERCK SHARP & DOHME
公开号:WO2015013835A1
公开(公告)日:2015-02-05
The present invention is directed to piperazine derivatives, pharmaceutical compositions comprising the same, and their use in the inhibition of HIV protease, the inhibition of HIV replication, the prophylaxis of infection by HIV, the treatment of infection by HIV, and the prophylaxis, treatment, and delay in the onset or progression of AIDS.
phosphinoylation/cyclization protocol utilizes air as a green oxidant and proceeds in a short span of time at room temperature with high functional group tolerance, and excellent chemo- and diastereoselectivity.
Substituted dipiperidine compounds of Formula (I)
or a salt, isomer, prodrug, metabolite or polymorph thereof, which are CCR2 antagonists and are useful in preventing, treating or ameliorating CCR2 mediated inflammatory syndromes, disorders or diseases in a subject in need thereof.
Formula (I)的替代二哌啶化合物或其盐、异构体、前药、代谢物或多型体,其为CCR2拮抗剂,可用于预防、治疗或改善需要的主体中的CCR2介导的炎症综合症、紊乱或疾病。
Palladium-catalyzed diastereoselective synthesis of β,β-diarylpropionic acid derivatives and its application to the total synthesis of ( R )-tolterodine and the enantiomer of a key intermediate for MK-8718
Palladium-catalyzed diastereoselective synthesis of optically active β,β-diarylpropionic acid derivatives employing 4-(tert-butyl)oxazolidin-2-one as the chiral auxiliary under an air atmosphere in excellent yields with high diastereoselectivity is reported. The catalytic system is applied to the total synthesis of (R)-tolterodine and the enantiomer of a key intermediate for MK-8718.