Synthesis of 1-aroyl(1-arylsulfonyl)-4-bis(trifluoromethyl)alkyl semicarbazides as potential physiologically active compounds
作者:Elena L. Luzina、Anatoliy V. Popov
DOI:10.1016/j.jfluchem.2013.01.033
日期:2013.4
1,1-Bis(trifluoromethyl)alkyl isocyanates obtained from perfluoroisobutene (PFIB) react with aroyl(arylsulfonyl)hydrazines. Twenty eight prospective biologically active polyfluorinated 1,4-substituted semicarbazides were synthesized. The structure of each new product was confirmed by analytical and spectroscopic methods. The Lipinski's and Gelovani's parameters were then calculated. Two adjustments
Exchange reactions of organotin and organosilicon compounds with vinylic fluorine
作者:D.I. Rossman、A.J. Muller
DOI:10.1016/s0022-1139(00)82196-x
日期:1993.1
Compounds carrying reactive fluorine atoms, such as methylphosphonic difluoride and perfluoroisobutene, undergo facile exchange with organosilanes and stannanes. Reactions with protic nucleophiles also yield similar products. To account for the products formed and observed reactivity differences, appropriate mechanisms are proposed. The reactions described herein have considerable synthetic utility
[EN] IMIDAZOPYRIDINE DERIVATIVES AS JAK INHIBITORS<br/>[FR] DÉRIVÉS DE L'IMIDAZOPYRIDINE EN TANT QU'INHIBITEURS DE JAK
申请人:ALMIRALL SA
公开号:WO2011076419A1
公开(公告)日:2011-06-30
New imidazopyridine derivatives having the chemical structure of formula (I) are disclosed; as well as process for their preparation, pharmaceutical compositions comprising them and their use in therapy as inhibitors of Janus Kinases (JAK).
[EN] POSITIVE ALLOSTERIC MODULATORS OF MGLUR2<br/>[FR] MODULATEURS ALLOSTÉRIQUES POSITIFS DE MGLUR2
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2013192306A1
公开(公告)日:2013-12-27
The disclosure generally relates to compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds modulate the mGluR2 receptor and may be useful for the treatment of various disorders of the central nervous system. Formula (I):
Negative substituents in the claisen rearrangement
作者:C.G. Krespan
DOI:10.1016/s0040-4020(01)88821-9
日期:1967.1
instances of the Claisen rearrangement are demonstrated with allyl vinyl ethers in which the vinyl segment is heavily substituted with negative groups. With fluoro, fluoroalkyl, chloro and alkoxy as negative substituents, these reactions proceed with unusual ease at 25–100°. A related isomerization of a propargyl vinyl ether to an allenyl ketone is also described.