使用简单的β-酮酯作为底物开发了一种合成氰基甲酸酯的新方案。(二乙氨基)三氟化硫 (DAST) 用作双重作用试剂以激活肟部分并提供氟化物。关键中间体,α -oximino- β酮酯中,通过高效的酸辅助肟化制备β酮酯。然后,证明了通过氟化 C C 键断裂对α-肟基-β-酮酯的解构提供了氰甲酸酯。在这种情况下,氟化物添加后 CC 键断裂选择性地发生在酮中而不是酯中。由于简单和温和的反应条件,举例说明了各种功能化的氰基甲酸酯。
A simple base-mediated synthesis of diverse substituted ring-fluorinated 4H-pyrans (monofluorinated 4H-pyrans) from trifluoromethylated alkenes and 1,3-dicarbonyl compounds was developed.
Synthesis and Evaluation of 3,4-Dihydropyrimidin-2(1<i>H</i>)-ones as Sodium Iodide Symporter Inhibitors
作者:Pierre Lacotte、Celine Puente、Yves Ambroise
DOI:10.1002/cmdc.201200417
日期:2013.1
The sodiumiodidesymporter (NIS) is responsible for the accumulation of iodide in the thyroid gland. This transport process is involved in numerous thyroid dysfunctions and is the basis for human contamination in the case of exposure to radioactive iodine species. 4‐Aryl‐3,4‐dihydropyrimidin‐2(1H)‐ones were recently discovered by high‐throughput screening as the first NIS inhibitors. Described herein
Dihydropyrimidin-2(1H)-ones and dihydropyrimidin-2(1H)-thiones as inhibitors of sodium iodide symporter
申请人:COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX
ENERGIES ALTERNATIVES
公开号:EP2682389A1
公开(公告)日:2014-01-08
The invention relates to novel dihydropyrimidin-2(1H)-ones and dihydropyrimidin-2(1H)-thiones of formula (I):
for use as medicaments, and in particular as inhibitors of sodium iodide symporter (NIS) and reducers of iodine transport and/or accumulation into NIS-expressing cells. The invention also relates to a pharmaceutical composition comprising at least one compound of formula (I) as active principle. Finally, the present invention relates to specific dihydropyrimidin-2(1H)-ones and dihydropyrimidin-2(1H)-thiones of formula (I) as such.
[EN] DIHYDROPYRIMIDIN-2(1H)-ONES AND DIHYDROPYRIMIDIN-2(1H)-THIONES AS INHIBITORS OF SODIUM IODIDE SYMPORTER<br/>[FR] DIHYDROPYRIMIDIN-2(1H)-ONES ET DIHYDROPYRIMIDIN-2(1H)-THIONES COMME INHIBITEURS DU SYMPORT DE L'IODURE DE SODIUM
申请人:COMMISSARIAT ENERGIE ATOMIQUE
公开号:WO2014203044A1
公开(公告)日:2014-12-24
The invention relates to novel dihydropyrimidin-2(lH)-ones and dihydropyrimidin- 2(lH)-thiones of formula (la). The invention also relates to the use of such compounds as medicaments, and in particular as inhibitors of sodium iodide symporter (NIS) and reducers of iodine transport and/or accumulation into NIS expressing cells. The invention also concerns a pharmaceutical composition comprising at least one compound of formula (la) as active principle.
3-Nitrobenzeneboronic Acid as an Efficient and Environmentally Benign Catalyst for the Selective Transesterification of β-Keto Esters
作者:R. Tale、A. Sagar、H. Santan、R. Adude
DOI:10.1055/s-2006-932454
日期:——
An efficient and high-yielding procedure for the selective transesterification of various β-ketoesters using 3-nitrobenzeneboronic acid as a catalyst in an environmentally acceptable process is described.