Polynuclear Aromatic Amines as N-Nucleophiles in the ipso-Substitution of the Cyano Group in 1,2,4-Triazines
摘要:
The possibility of use of polynuclear aromatic amines as N-nucleophiles in the ipso-substitution of the 5-cyano group in 1,2,4-triazines has been studied. The influence of the structure of the aromatic amine on the result of the reaction has been demonstrated. With 3-aminobiphenyls the corresponding 5-amino-N-(biphenyl-3-yl)-1,2,4-triaizines have been obtained with yields of up to 88%.
Palladium-Catalyzed Arylation of Simple Arenes with Iodonium Salts
摘要:
The development of an arylation protocol for simple arenes with diaryliodonium salts using the Herrmann-Beller palladacycle catalyst is reported. The reaction takes simple aromatic feedstocks and creates valuable biaryls for use in all sectors of the chemical industry.
This invention provides compounds of formula I:
1
wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
and R
7
are as defined in the specification, or a pharmaceutically acceptable salt or solvate or stereoisomer thereof. The compounds of this invention possess both &bgr;
2
adrenergic receptor agonist and muscarinic receptor antagonist activity. Such compounds are useful for treating pulmonary disorders, such as chronic obstructive pulmonary disease and asthma.
and photobiology. However, their applications in photocatalysis are yet to be explored. We report here that sunlight along with 1 mol% cercosporin, which is one of the perylenequinonoid pigments, catalyzes the direct C–H bond arylation of (het)arenes by a photoredox process with good regioselectivity and broad functional group compatibility. Furthermore, a gram-scale reaction with great conversions
Compounds having beta adrenergic receptor agonist and muscarinic receptor antagonist activity
申请人:Mammen Mathai
公开号:US20060035933A1
公开(公告)日:2006-02-16
This invention provides compounds of formula I:
wherein R
1
, R
2
, R
4
, R
5
, R
6
, R
7
, R
8a
, R
8b
, W, a, b, c and m are as defined in the specification, or a pharmaceutically acceptable salt or solvate or stereoisomer thereof. The compounds of this invention possess both β
2
adrenergic receptor agonist and muscarinic receptor antagonist activity. Accordingly, such compounds are expected to be useful as therapeutic agents for treating pulmonary disorders, such as chronic obstructive pulmonary disease and asthma.
Compounds having beta2 adrenergic receptor agonist and muscarinic receptor antagonist activity
申请人:Mammen Mathai
公开号:US20050113417A1
公开(公告)日:2005-05-26
The invention is directed to compounds of formula I:
wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7a
, R
7b
, W, G
1
, G
2
, a, b, c, d and m are as defined in the specification, or a pharmaceutically acceptable salt or solvate or stereoisomer thereof. The invention is also directed to pharmaceutical compositions comprising such compounds; methods of using such compounds; and process and intermediates for preparing such compounds.
This invention provides biphenyl derivatives of formula I:
1
wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, W, a, b and c are as defined in the specification, or a pharmaceutically acceptable salt or solvate or stereoisomer thereof. The biphenyl derivatives of this invention possess both &bgr;
2
adrenergic receptor agonist and muscarinic receptor antagonist activity and therefore, such biphenyl derivatives are useful for treating pulmonary disorders, such as chronic obstructive pulmonary disease and asthma.