Structure–activity relationship of anti-malarial spongean peroxides having a 3-methoxy-1,2-dioxane structure
摘要:
In order to study the structure-activity relationship of anti-malarial spongean peroxides, several analogues concerning with the 6-methoxyacetyl moiety and the 3-pentyl residue in methyl 2-(3-methoxy-3-pentyl-1,2-dioxan-6-yl) acetate were synthesized and evaluated for anti-malarial activity. The tert-butyl ester analogue 14 showed stability in mouse serum and a high selectivity index against the malaria parasite, Plasmodium falciparum, and the citronellyl analogue 31 exhibited the strongest in vitro antimalarial activity among them, and the imidazole analogue 25 showed desirable in vivo anti-malarial activity against P. berghei infected mice. (C) 2004 Elsevier Ltd. All rights reserved.
[EN] FUSED TRI AND TETRA-CYCLIC PYRAZOLE KINASE INHIBITORS<br/>[FR] INHIBITEURS DE PYRAZOLE KINASE FUSIONNEE TRICYCLIQUE ET TETRACYCLIQUE
申请人:ABBOTT LAB
公开号:WO2004080973A1
公开(公告)日:2004-09-23
Compounds having the formula (I) (I), are useful for inhibiting protein kinases. Also disclosed are methods of making the compounds, compositions containing the compounds, and methods of treatment using the compounds.
Organocatalytic Redox Isomerization of Electron-Deficient Allylic Alcohols: Synthesis of 1,4-Ketoaldehydes
作者:Keshab Mondal、Buddhadeb Mondal、Subhas Chandra Pan
DOI:10.1021/acs.joc.6b00243
日期:2016.6.3
An organocatalytic redox isomerization strategy has been developed for the synthesis of 1,4-ketoaldehydes. DABCO was found to be the best catalyst for the isomerization of γ-hydroxy enones. With 20 mol % of DABCO as catalyst and DMSO as the solvent high yields have been achieved for different 1,4-ketoaldehydes.
afforded γ-ketoaldehydes or 1,4-diketones in a facile manner. In this process, oxycyclopropanes are formed as intermediates, and are subsequently ring opened in the presence of the rhodium(II) acetate catalyst to furnish the corresponding 1,4-dicarbonyl compounds. The scope of this protocol has been demonstrated with the synthesis of a serotonin antagonist.
Fused tri and tetra-cyclic pyrazole kinase inhibitors
申请人:——
公开号:US20040259904A1
公开(公告)日:2004-12-23
Compounds having the formula (I)
1
are useful for inhibiting protein kinases. Also disclosed are methods of making the compounds, compositions containing the compounds, and methods of treatment using the compounds.
and thus allows rapid access to a diverse array of chiral 5,6,7,8-tetrahydroindolizines from easily available chiral amino acid esters. The synthetic utility has been demonstrated by the asymmetric synthesis of alklaoids (−)-indolizidine 167B, (+)-indolizidine 209D, (+)-monomorine I, and a natural product analogue.
已开发出Fe(NO 3 ) 3介导的环丙醇与富电子吡咯的开环芳基化反应,该反应可能通过环丙醇的氧化自由基开环,然后环化为吡咯基序,然后芳构化进行。该方法无需预官能化即可实现环丙醇的直接芳基化,因此可以从易于获得的手性氨基酸酯中快速获得各种手性 5,6,7,8-四氢二氢吲嗪。合成效用已通过生物碱 (−)-indolizidine 167B、(+)-indolizidine 209D、(+)-monomorine I 和天然产物类似物的不对称合成得到证明。