Synthesis of 2′,3′-dideoxy-3′-fluoro-l-ribonucleosides as potential antiviral agents from d-sorbitol
摘要:
2',3'-Dideoxy-3'-fluoro-L-ribonucleosides were synthesized as potential antiviral agents. The key intermediate, methyl 5-O-benzoyl-2,3-dideoxy-3-fluoro-L-ribofuranoside, which was prepared from D-sorbitol, was condensed with pyrimidine and purine bases to obtain the respective nucleosides. Among them, the cytosine analogue 2',3'-dideoxy-3'-fluoro-alpha-L-cytidine showed a moderate anti-HBV activity. (C) 2000 Elsevier Science Ltd. All rights reserved.
[EN] ATG7 INHIBITORS AND THE USES THEREOF<br/>[FR] INHIBITEURS D'ATG7 ET LEURS UTILISATIONS
申请人:MILLENNIUM PHARM INC
公开号:WO2018089786A1
公开(公告)日:2018-05-17
Disclosed are chemical entities which are compounds of formula (I) : or a pharmaceutically acceptable salt thereof, wherein R1, R2, and Ra have the values described herein. Chemical entities according to the disclosure can be useful as inhibitors of ATG7. Further provided are pharmaceutical compositions comprising a chemical entity of the disclosure and methods of using the compositions in the treatment of cancer.
2-Deoxy-L-ribose may be prepared by reacting a compound represented by formula (1) with an organometallic compound represented by formula (2) to give a compound represented by formula (3), which is then subjected to deprotection of a hydroxyl group and production of aldehyde by acid hydrolysis:
wherein R
1
and R
2
are each independently a hydroxyl-protecting group or R
1
and R
2
in combination form a hydroxyl-protecting group, R
3
and R
4
are each independently an alkyl group, an aralkyl group, an aryl group or a silyl group or R
3
and R
4
in combination form an alkylene group.
Disclosed are chemical entities which are compounds of formula (I): or a pharmaceutically acceptable salt thereof, wherein R1, R2, and Ra have the values described herein. Chemical entities according to the disclosure can be useful as inhibitors of ATG7. Further provided are pharmaceutical compositions comprising a chemical entity of the disclosure and methods of using the compositions in the treatment of cancer.
所公开的化学实体为式(I)化合物:或其药学上可接受的盐,其中 R1、R2 和 Ra 具有本文所述的值。根据本公开的化学实体可用作 ATG7 的抑制剂。进一步提供了包含本公开的化学实体的药物组合物,以及使用该组合物治疗癌症的方法。
Discovery and optimization of pyrazolopyrimidine sulfamates as ATG7 inhibitors
作者:Shih-Chung Huang、Sharmila Adhikari、James E. Brownell、Emily F. Calderwood、Jouhara Chouitar、Natalie Roy D'Amore、Dylan B. England、Klaudia Foley、Sean J. Harrison、Patrick J. LeRoy、David Lok、Anna Lublinsky、Li-Ting Ma、Saurabh Menon、Yu Yang、Ji Zhang、Alexandra E. Gould
DOI:10.1016/j.bmc.2020.115681
日期:2020.10
Autophagy is postulated to be required by cancer cells to survive periods of metabolic and/or hypoxic stress. ATG7 is the E1 enzyme that is required for activation of Ubl conjugation pathways involved in autophagosome formation. This article describes the design and optimization of pyrazolopyrimidine sulfamate compounds as potent and selective inhibitors of ATG7. Cellular levels of the autophagy markers, LC3B and NBR1, are regulated following treatment with these compounds.
Process for the preparation of 1-chloro-3,5-di-o-acyl-2-deoxy-l-ribofuranoside derivatives
申请人:Tamerlani Giancarlo
公开号:US20070083041A1
公开(公告)日:2007-04-12
Herein described is a process for the preparation of 1-chloro-3,5-di-O-acyl-2-de-oxy-L-ribofuranoside derivatives of general formula (I) useful as intermediates in processes for preparing nucleotides of the L series having antiviral activity.