Benzopyranopyridine derivatives. 1. Aminoalkyl derivatives of the azaxanthenes as bronchodilating agents
摘要:
The preparation of the four isomeric azaxanthones 3 and a number of their aromatic ring substituted derivatives is described. These ketones were converted into the title compounds which were examined for their biological properties. The most interesting compound in this series, the 1-methyl-4-piperidylidene derivative of 1-azaxanthene, shows the profile of an orally effective potent bronchodilating agent as well as a moderate antihistamine. Biological properties of this compound were compared to a number of antihistamines as well as known bronchodilating agents. Structure-activity relationships are also discussed.
Emissive and Cell-Permeable 3-Pyridyl- and 3-Pyrazolyl-4-azaxanthone Lanthanide Complexes and Their Behaviour<i>in cellulo</i>
作者:Craigâ P. Montgomery、Elizabethâ J. New、Larsâ O. Palsson、David Parker、Andreiâ S. Batsanov、Laurent Lamarque
DOI:10.1002/hlca.200900122
日期:2009.11
seven emissive europium(III) and terbium(III) complexes was prepared, incorporating a 3‐pyridyl‐4‐azaxanthone or 3‐pyrazolyl‐4‐azaxanthone sensitising moiety within a polydentate macrocyclic ligand. High overall emission quantum yields in aqueous media are attenuated in the presence of protein or certain oxy anions due to displacement of the N,N′‐chelated sensitiser. Nevertheless, these complexes are
[EN] PYRIDYL-AZA(THIO)XANTHONE SENSITIZER COMPRISING LANTHANIDE(III) ION COMPLEXING COMPOUNDS, THEIR LUMINESCENT LANTHANIDE (III) ION COMPLEXES AND USE THEREOF AS FLUORESCENT LABELS.<br/>[FR] SENSIBILISATEUR PYRIDYL-AZA(THIO)XANTHONE COMPRENANT DES COMPOSÉS COMPLEXANT LES IONS LANTHANIDE(III), LEURS COMPLEXES DES IONS LANTHANIDE(III) LUMINESCENTS ET LEUR UTILISATION COMME MARQUEURS FLUORESCENTS
申请人:CIS BIO INT
公开号:WO2010084090A1
公开(公告)日:2010-07-29
Lanthanide (III) Ion completing compound comprising: (1) a sensitizer moiety of Formula (I) in which: a is an integer from 1 to 4; b is an integer equal to 1 or 2; c is an integer equal to 1 or 2; (R1)a, (R2)b, (R3)C are the same or different and are chosen from the group consisting of H; alkyl; -COOR4 where R4 is H or an alkyl; aryl; heteroaryl; saturated or unsaturated cyclic hydrocarbon; CF3; CN; a halogen atom; L-Rg; L-Sc; or two consecutive R3, two consecutive R2 or two consecutive R1 groups together form an aryl or a heteroaryl group or a saturated or unsaturated cyclic hydrocarbon group; where L is a linker, Rg is a reactive group and Sc is a conjugated substance; X1 and X2 are the same or different and are O or S; A is either a direct bond or a divalent group chosen from -CH2- or -(CH2)2-, said moiety being covalentiy attached to (2) a lanthanide (in) ion chelating moiety through A. The above compounds are used in the preparation of luminescent lanthanide (III) ion complexes which are used as fluorescent labels.
[EN] LANTHANIDE (III) ION COMPLEXING COMPOUNDS, LUMINESCENT LANTHANIDE (III) ION COMPLEXES AND USE THEREOF AS FLUORESCENT LABELS<br/>[FR] COMPOSÉS COMPLEXANT LES IONS LANTHANIDE (III), COMPLEXES LUMINESCENTS D'IONS LANTHANIDE (III) ET LEUR UTILISATION COMME MARQUEURS FLUORESCENTS
申请人:CIS BIO INT
公开号:WO2009010580A1
公开(公告)日:2009-01-22
Lanthanide (III) ion complexing compound comprising: (1) a sensitizer moiety of formula (I) in which: a is an integer from 1 to 4; b is an integer equal 1 or 2; c is an integer equal to 1 or 2; (R1)a, (R2)b, (R3)C are the same or different and are chosen from the group consisting of: H; alkyl; -COOR4 where R4 is H or an alkyl; aryl; heteroaryl; saturated or unsaturated cyclic hydrocarbon; CF3; CN; a halogen atom; L-Rg; L-Sc; or two consecutive R3, two consecutive R2 or two consecutive R1 groups together form an aryl or a heteroaryl group or a saturated or unsaturated cyclic hydrocarbon group; where L is a linker, Rg is a reactive group and Sc is a conjugated substance; X1 and X2 are the same or different and are O or S; A is either a direct bond or a divalent group chosen from -CH2- or -(CH2)2-, said moiety being covalently attached to (2) a lanthanide (III) ion chelating moiety through A. Application: Preparation of luminescent lanthanide (III) ion complexes and use thereof as fluorescent labels.
Synthesis of 1-Azaxanthones and 1-Azathioxanthones by Yb(OTf)3/TfOH Co-Catalyzed Intramolecular Friedel-Crafts Reaction
作者:Weike Su、Can Jin、Jie Li
DOI:10.3987/com-10-12029
日期:——
Intramolecular Friedel-Crafts cyclization of phenoxypyridine acids (3a-3j) and phenythiopyridine acids (4a-4i) to form 1-azaxanthones (1a-1j) and 1-azathioxanthones (2a-2i), respectively, was efficiently promoted by Yb(OTf) 3 /TfOH as co-catalysts. And a number of substrates could be cyclized in moderate to good yields.
LANTHANIDE (III) ION COMPLEXING COMPOUNDS, LUMINESCENT LANTHANIDE (III) ION COMPLEXES AND USE THEREOF AS FLUORESCENT LABELS
申请人:Lamarque Laurent
公开号:US20100204467A1
公开(公告)日:2010-08-12
Lanthanide (III) ion complexing compound comprising:
(1) a sensitizer moiety of formula (I)
in which:
a is an integer from 1 to 4;
b is an integer equal 1 or 2;
c is an integer equal to 1 or 2;
(R
1
)a, (R
2
)b, (R
3
)c are the same or different and are chosen from the group consisting of: H; alkyl; —COOR
4
where R
4
is H or an alkyl; aryl; heteroaryl; saturated or unsaturated cyclic hydrocarbon; CF
3
; CN; a halogen atom; L-Rg; L-Sc; or two consecutive R
3
, two consecutive R
2
or two consecutive R
1
groups together form an aryl or a heteroaryl group or a saturated or unsaturated cyclic hydrocarbon group; where L is a linker, Rg is a reactive group and Sc is a conjugated substance;
X
1
and X
2
are the same or different and are O or S;
A is either a direct bond or a divalent group chosen from —CH
2
— or —(CH
2
)
2
—, said moiety being covalently attached to
(2) a lanthanide (III) ion chelating moiety through A.
Application: Preparation of luminescent lanthanide (III) ion complexes and use thereof as fluorescent labels.