[EN] BICYCLIC IMIDAZOL DERIVATIVES AGAINST FLAVIVIRIDAE<br/>[FR] DERIVES DE L'IMIDAZOLE BICYCLIQUES DIRIGES CONTRE LES FLAVIVIRIDAE
申请人:GENELABS TECH INC
公开号:WO2005012288A1
公开(公告)日:2005-02-10
Disclosed are compounds, compositions and methods for treating Flaviviridae family virus infections.
揭示了用于治疗黄病毒科病毒感染的化合物、组合物和方法。
Synthesis of 4-Quinolones via Cyclocondensation of Substituted ortho-Amidoacetophenones: A Refit to the Camps Cyclization by Applying Trimethylsilyl Trifluoromethanesulfonate/Triethylamine
A modification of the classical Camps cyclization is described. A series of substituted 4-quinolone derivatives is prepared via trimethylsilyl trifluoromethanesulfonate/triethylamine induced cyclocondensation of substituted ortho-amidoacetophenones. The process shows a broad substrate scope and allows selective preparation of 2-aryl- and 2-alkyl-substituted 4-quinolones. Enantiopure starting materials react without loss of optical purity using the modified conditions. Subsequent transformations of the products involving preparation of a 4-quinolyl nonaflate and O-selective methylation are also described.
Rh(<scp>iii</scp>)-catalyzed alkynylation: synthesis of functionalized quinolines from aminohydrazones
作者:Pradeep Kumar、Vineeta Garg、Manoj Kumar、Akhilesh K. Verma
DOI:10.1039/c9cc06205j
日期:——
terminal alkynes has been described. The reaction is oxidant/base-free and tolerates a wide variety of functional groups and has been successfully extended with 1,3 and 1,4-bis(phenylethynyl)benzenes to afford 1,3- and 1,4-bis(4-methylquinolin-2-yl)benzenes and 2-(3/4-ethynylphenyl)-4-methylquinolines. Furthermore, the control experiment supports the proposed reaction mechanism.
Synthesis of polysubstituted anilines using the Diels-Alder reaction of methyl 5-aminofuroate
作者:John E. Cochran、Tianhua Wu、Albert Padwa
DOI:10.1016/0040-4039(96)00440-6
日期:1996.4
Methyl 5-aminofuroate undergoes a facile [4+2]-cycloaddition with a variety of dienophiles to afford ring opened cycloadducts which are readily dehydrated using BF3·OEt2 to give polysubstituted anilines.
Visible-Light-Induced Benzylic C-H Functionalization for the Synthesis of 2-Arylquinazolines
作者:Jingchang Zhang、Qibao Wang、Yongen Guo、Lin Ding、Maocai Yan、Yinglin Gu、Jiajia Shi
DOI:10.1002/ejoc.201900996
日期:2019.9.15
Visible‐light‐induced synthesis of substituted quinazolines using1‐(2‐aminoaryl)ethan‐1‐ones in conjunction with arylmethanamines as starting materials.