Described are methods of forming protected boronic acids that provide in a manner that is straightforward, scalable, and cost-effective a wide variety of building blocks, such as building blocks containing complex and/or pharmaceutically important structures, and/or provide simple or complex protected organoboronic acid building blocks. A first method includes reacting an imino-di-carboxylic acid and an organoboronate salt. A second method includes reacting a N-substituted morpholine dione and an organoboronic acid.
Novel Pyrimidine- And Triazine-Hepcidine Antagonists
申请人:Dürrenberger Franz
公开号:US20120202806A1
公开(公告)日:2012-08-09
The present invention relates to new hepcidin antagonists, pharmaceutical compositions containing them and the use thereof as a drug, in particular for the treatment of iron metabolism disorders such as, in particular, iron deficiency diseases and anaemia, in particular anaemia associated with chronic inflammatory disease (ACD: anaemia of chronic disease and AI: anaemia of inflammation).
Room temperature syntheses of entirely diverse substituted β-fluorofurans
作者:Yan Li、Kraig A. Wheeler、Roman Dembinski
DOI:10.1039/c1ob06693e
日期:——
Synthesis of highlysubstituted 3-fluorofurans is reported. The sequence began with preparation of tert-butyldimethylsilyl alk-1-en-3-yn-1-yl ethers from 1,4-disubstituted alk-3-yn-1-ones. Subsequent fluorination of alkenynyl silyl ethers with Selectfluor gave 2-fluoroalk-3-yn-1-ones in almost quantitative yield. Subsequent 5-endo-dig cyclizations using chlorotriphenylphosphine gold(I)/silver trif
The present invention provides compounds of formula (I) wherein A1, A2, R1, D1, D2, Y3 and X are as defined in the claims. The invention further relates to compositions which comprise these compounds and to their use in agriculture or horticulture for controlling or preventing infestation of plants by phytopathogenic microorganisms, preferably fungi.
benzo[ghi]fluoranthene skeleton through a site‐selective CC cleavagereaction. This cleavagereaction was found to be driven by both the coordination of the 2‐pyridyl substituent to iridium and the relief of strain in the curved corannulene skeleton. This finding should facilitate the design of carbon nanomaterials based on CC bond cleavagereactions.