Synthesis of 6-Alkyluridines from 6-Cyanouridine via Zinc(II) Chloride-Catalyzed Nucleophilic Substitution with Alkyl Grignard Reagents
摘要:
6-Cyanouracil derivatives underwent a direct nucleophilic substitution reaction with alkyl Grignard reagents in the presence of zinc(II) chloride as a catalyst to form the corresponding 6-alkyluracils. This methodology is applicable to sugar-protected 6-cyanouridine and 6-cyano-2'-deoxyuridine without the protection at the N-3-imide and provides a facile and general access to versatile 6-alkyluracil and 6-alkyluridine derivatives.
Aminotriazole compounds useful as inhibitors of protein kinases
申请人:Arnost J. Michael
公开号:US20080096901A1
公开(公告)日:2008-04-24
The present invention relates to inhibitors of protein kinases. The invention also provides pharmaceutical compositions comprising the compounds of the invention, processes for preparing the compounds and methods of using the compositions in the treatment of various disorders.
Amyloid precursor protein (APP) RNAi agent compositions and methods of use thereof
申请人:ALNYLAM PHARMACEUTICALS, INC.
公开号:US11034957B2
公开(公告)日:2021-06-15
The disclosure relates to double stranded ribonucleic acid (dsRNAi) agents and compositions targeting the APP gene, as well as methods of inhibiting expression of an APP gene and methods of treating subjects having an APP-associated disease or disorder, such as cerebral amyloid angiopathy (CAA) and early onset familial Alzheimer disease (EOFAD or eFAD), using such dsRNAi agents and compositions.
Coronavirus iRNA compositions and methods of use thereof
申请人:Alnylam Pharmaceuticals, Inc.
公开号:US11208660B1
公开(公告)日:2021-12-28
The present invention relates to RNAi agents, e.g., dsRNA agents, targeting the coronavirus genome. The invention also relates to methods of using such RNAi agents to inhibit expression of a coronavirus genome and to methods of treating or preventing a coronavirus-associated disease in a subject.