[EN] BETA-HAIRPIN PEPTIDOMIMETICS<br/>[FR] PEPTIDOMIMÉTIQUES EN ÉPINGLE À CHEVEUX BÊTA
申请人:POLYPHOR AG
公开号:WO2016150576A1
公开(公告)日:2016-09-29
Beta-hairpin peptidomimetics of the general formula (I), and pharmaceutically acceptable salts thereof, with P, T, Q., and optionally L being elements as defined in the description and the claims, have Gram-negative antimicrobial activity to e.g. inhibit the growth or to kill microorganisms such as Klebsiellapneumoniae and/or Acinetobacter baumannii and/or Escherichia coli and/or Pseudomonas aeruginosa. They ca n be used as medicaments to treat or prevent infections or as disinfectants for foodstuffs, cosmetics, medicaments or other nutrient-containing materials. These peptidomimetics can be manufactured by a process which is based on a mixed solid- and solution phase synthetic strategy.
Aspergillus oryzae protease-catalyzed esterhydrolysis, substitution of N-unprotected aminoacidesters for the corresponding N-protected aminoacidesters resulted in a large enhancement of the hydrolysis rate, while the enantioselectivity was deteriorated strikingly when the substrates employed were the conventional methyl esters. This difficulty was overcome by employing esters bearing a longer alkyl chain
Synthesis and molecular docking study of novel alizarin derivatives containing phosphoryl amino acid moiety as potential antitumor agents
作者:Ri-zhen Huang、Le Jin、Gui-yang Yao、Wei-long Dai、Xiao-chao Huang、Zhi-Xin Liao、Heng-shan Wang
DOI:10.1007/s00044-017-1938-2
日期:2017.10
Series of novel alizarin and phosphorylaminoacid scaffold (4a–4d, 8a–8d) were synthesized and evaluated for the suppression of cancer cell proliferation in vitro against MGC-803, HepG2, T24, NCI-H460, and SK-OV-3 cell lines by standard 3-(4, 5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay compared with commercial anticancer drug doxorubicin. Interestingly, all newly synthesized
[EN] AMINOCARBAMOYL COMPOUNDS FOR THE TREATMENT OF VIRAL INFECTIONS<br/>[FR] COMPOSÉS AMINOCARBAMOYLE DESTINÉS AU TRAITEMENT D'INFECTIONS VIRALES
申请人:HOFFMANN LA ROCHE
公开号:WO2022043374A1
公开(公告)日:2022-03-03
The present invention relates to compounds of formula (II) wherein R1-R5, X and L are as described herein, and pharmaceutically acceptable salts thereof, compositions including the compounds and methods of using the compounds, particularly in the treatment and prophylaxis of coronavirus infection.
Remote C–H Hydroxylation by an α-Ketoglutarate-Dependent Dioxygenase Enables Efficient Chemoenzymatic Synthesis of Manzacidin C and Proline Analogs
作者:Christian R. Zwick、Hans Renata
DOI:10.1021/jacs.7b12918
日期:2018.1.24
demonstrate the practical utility of this transformation in the concise syntheses of a rare alkaloid, manzacidinC, and densely substituted amino acid derivatives with remarkable step efficiency. This work provides a blueprint for future applications of Fe/αKG hydroxylation in complex molecule synthesis and the development of powerful synthetic paradigms centered on enzymatic C-H functionalization logic
远端位置的选择性 CH 官能化仍然是有机合成中极具挑战性的问题。尽管大自然已经进化出无数能够实现这一壮举的酶,但它们的合成效用在很大程度上被忽视了。在这里,我们在功能上表征了一种α-酮戊二酸依赖性双加氧酶(Fe/αKG),它选择性地羟基化各种脂肪族氨基酸的 δ 位置。与催化类似反应的其他 Fe/αKG 相比,该酶的动力学分析和底物分析显示出优异的催化效率和底物混杂性。我们证明了这种转化在稀有生物碱、manzacin C 和密集取代的氨基酸衍生物的简洁合成中的实际效用,具有显着的步骤效率。