Solvent directed electrophilic iodination and phenylselenenylation of activated alkyl aryl ketones
作者:Barbara Panunzi、Lucia Rotiroti、Marco Tingoli
DOI:10.1016/j.tetlet.2003.10.037
日期:2003.12
A mixture of molecular iodine and phenyliodine(III) bis(trifluoroacetate) (BTI) in CH3CN (or CH3OH) iodinates the aromatic ring of some activated alkyl aryl ketones. A different outcome results if PhSeSePh is used instead of I2 in the presence of BTI. In CH3CN the aromatic phenylselenenylation is still observed while in CH3OH the formation of α-phenylseleno ketones occurs followed by the conversion
The present invention provides compounds of formula I:
1
in which:
one of X and Y is a nitrogen atom substituted by a group R
6
′ and the other is a carbon atom substituted by an isoxazole group substituted on its carbon atoms by groups R
3
and R
4
;
one of R
6
and R
6
′ is hydrogen;
either all of W
1
, W
2
, W
3
and W
4
are carbon or one of W
1
, W
2
, W
3
and W
4
is nitrogen and the rest are carbon;
and R
1
and R
2
are, independently, a small group, heteroaromatic ring or a 4-7 membered cyclic amine ring; processes for making them; pharmaceutical composition containing them; their use in therapy, particularly for enhancing cognition in conditions such as Alzheimer's Disease; and methods of treatment using them.
Superacid-Promoted Hydroxyalkylation of 1,2-Indandiones
作者:Adam F. Tracy、Matthew P. Abbott、Douglas A. Klumpp
DOI:10.1080/00397911.2012.693239
日期:2013.8.18
Abstract 1,2-Indandione reacts efficiently with arenes to give 2,2-diaryl-1-indanones by the hydroxyalkylation reaction. The Brønsted superacid CF3SO3H (triflic acid) is an effective catalyst for these condensation reactions. The requisite 1,2-indandiones were prepared from the 1-indanones. GRAPHICAL ABSTRACT
[EN] N-SUBSTITUTED TRICYCLIC 3-AMINOPYRAZOLES AS PDFG RECEPTOR INHIBITORS<br/>[FR] 3-AMINOPYRAZOLES TRICYCLIQUES N-SUBSTITUES COMME INHIBITEURS DES RECEPTEURS DU PDFG
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2003097609A1
公开(公告)日:2003-11-27
The invention is directed to N-substituted tricyclic 3-AMINOPYRAZOLE derivatives, which are useful as inhibitors of platelet-derived growth factor receptor (PDGF-R) kinase, and methods for the preparation of said derivatives. The present invention is further directed to pharmaceutical compositions comprising the compounds of the presentinvention and to methods for treating conditions such as tumors and other cell proliferative disorders.
N-substituted tricyclic 3-aminopyrazoles as inhibitors for the treatment of cell proliferative disorders
申请人:——
公开号:US20040082639A1
公开(公告)日:2004-04-29
The invention is directed to N-substituted tricyclic 3-AMINOPYRAZOLE derivatives, which are useful as inhibitors of platelet-derived growth factor receptor (PDGF-R) kinase, and methods for the preparation of said derivatives. The present invention is further directed to pharmaceutical compositions comprising the compounds of the present invention and to methods for treating conditions such as tumors and other cell proliferative disorders.