α-bromomethyl ketones and/or aryl methyl ketones were formed at the first reaction step and their iodoform-type reaction occurred at the second reaction step to provide primaryaromatic amides. The present reaction is a useful and practical transition-metal-free method for the preparation of primaryaromatic amides from ethylarenes.
[EN] INHIBITORS OF HISTONE DEACETYLASE USEFUL FOR THE TREATMENT OR PREVENTION OF HIV INFECTION<br/>[FR] INHIBITEURS D'HISTONE DÉSACÉTYLASE UTILES POUR LE TRAITEMENT OU LA PRÉVENTION D'UNE INFECTION PAR LE VIH
申请人:MERCK SHARP & DOHME
公开号:WO2020028150A1
公开(公告)日:2020-02-06
The present invention relates to Compounds of Formula (I): Formula (I) and pharmaceutically acceptable salts or prodrug thereof, wherein R1, R2, R3, Ra, Rb, A and B are as defined herein. The present invention also relates to compositions comprising at least one compound of Formula (I), and methods of using the compounds of Formula (I) for treating or preventing HIV infection in a subject.
Silica gel and microwave-promoted synthesis of dihydropyrrolizines and tetrahydroindolizines from enaminones
作者:Robin Klintworth、Garreth L Morgans、Stefania M Scalzullo、Charles B de Koning、Willem A L van Otterlo、Joseph P Michael
DOI:10.3762/bjoc.17.170
日期:——
various bromomethyl aryl and heteroaryl ketones, underwent cyclization in the presence of silica gel to give ethyl 6-(hetero)aryl-2,3-dihydro-1H-pyrrolizine-5-carboxylates within minutes upon microwave heating in xylene at 150 °C. Instead of functioning as a nucleophile, the enaminone acted as an electrophile at its carbonyl group during the cyclization. Yields of the bicyclic products were generally above
通过N- (乙氧基羰基甲基)吡咯烷-2-硫酮与各种溴甲基芳基和杂芳基酮之间的 Eschenmoser 硫化物收缩制备多种N- (乙氧基羰基甲基)烯胺酮,在硅胶存在下进行环化,得到乙基 6-(杂)芳基-2,3-二氢-1H-吡咯嗪-5-甲酸酯在二甲苯中于 150 °C 下微波加热几分钟内即可生成。在环化过程中,烯胺酮在其羰基处充当亲电子试剂,而不是充当亲核试剂。双环产品的收率一般在75%以上。由 ( E )-2-[2-(2-氧代-2-芳基亚乙基)哌啶-1-乙酯生产 2-芳基-5,6,7,8-四氢中氮茚-3-甲酸乙酯的类似微波辅助反应[酰基]乙酸酯在非极性溶剂中失败,但在较低温度和微波功率下在乙醇中发生,尽管需要更长的时间。提出了一种可能的环化机制,并描述了二氢吡咯嗪核心中新产生的吡咯环的进一步官能化。
[EN] IMIDAZOLE DERIVATIVES AS IDO INHIBITORS<br/>[FR] DÉRIVÉS IMIDAZOLE COMME INHIBITEURS DE L'IDO
申请人:NEWLINK GENETICS
公开号:WO2011056652A1
公开(公告)日:2011-05-12
Presently provided are IDO inhibitors of general formulae (VII), (VIII) as shown below and pharmaceutical compositions thereof, useful for modulating an activity of indoleamine 2,3-dioxygenase; treating indoleamine 2,3-dioxygenase (IDO) mediated immunosuppression; treating a medical conditions that benefit from the inhibition of enzymatic activity of indoleamine-2,3-dioxygenase; enhancing the effectiveness of an anti-cancer treatment comprising administering an anti-cancer agent; treating tumor-specific immunosuppression associated with cancer; and treating immunosupression associated with an infectious disease.
α-Ketothioamide Derivatives: A Promising Tool to Interrogate Phosphoglycerate Dehydrogenase (PHGDH)
作者:Séverine Ravez、Cyril Corbet、Quentin Spillier、Alice Dutu、Anita D. Robin、Edouard Mullarky、Lewis C. Cantley、Olivier Feron、Raphaël Frédérick
DOI:10.1021/acs.jmedchem.6b01166
日期:2017.2.23
Given the putative role of PHGDH in cancer, development of inhibitors is required to explore its function. In this context, we established and validated a straightforward enzymatic assay suitable for high-throughput screening and we identified inhibitors with similar chemical scaffolds. Through a convergent pharmacophore approach, we synthesized α-ketothioamides that exhibit interesting in vitro PHGDH