Silver-Mediated [3 + 2] Cycloaddition of Alkynes and N-Isocyanoiminotriphenylphosphorane: Access to Monosubstituted Pyrazoles
摘要:
A silver-mediated [3 + 2] cycloaddition of "CNN" and "C C" for constructing pyrazoles has been described. The "CNN" building block used is N-isocyanoiminotriphenylphosphorane, which is a stable, safe, easy-to-handle, and odorless solid isocyanide. The reaction is characterized by its mild conditions, broad substrate scope, and excellent functional group tolerance.
Retracted Article: Molybdenum-silver co-catalyzed cycloaddition of alkynes with <i>N</i>-isocyanoiminotriphenylphosphorane (NIITP): an efficient strategy for the synthesis of monosubstituted pyrazoles
作者:Pengbing Mi、Jiajia Lang、Shaojian Lin
DOI:10.1039/c9cc03363g
日期:——
A new molybdenum-silver co-catalyzed [3+2] cycloaddition of alkynes with N-isocyanoiminotriphenylphosphorane (NIITP) has been described. The NIITP serves as a non-toxic, facile “CNN” source. Over 30 substrates were successfully converted to the desired compounds in good to excellent yields.
The present invention relates to spirocyclic amide derivatives of the formula I,
pharmaceutically acceptable salts thereof, a process for their preparation, pharmaceutical compositions containing them, and their use in therapy.
本发明涉及公式 I 的螺环酰胺衍生物,其药学上可接受的盐,其制备方法,含有它们的制药组合物以及它们在治疗中的应用。
Pyrazole derivatives useful as 5-lipoxygenase activating protein (FLAP) inhibitors
申请人:ASTRAZENECA AB
公开号:US10183947B2
公开(公告)日:2019-01-22
The present application relates to novel compounds of formula (I)
to their utility in treating and/or preventing clinical conditions including cardiovascular diseases (CVD), to methods for their therapeutic use, to pharmaceutical compositions containing them and to processes for preparing such compounds.