Methyl [(2-bromo-3-pyridinyl)oxy]acetate 、 sodium hydroxide 、 以
甲醇 为溶剂,
反应 2.0h,
以to give the title compound as a white solid (2.8 g), m.p. 172°-174°的产率得到2-((2-Bromopyridin-3-yl)oxy)acetic acid
参考文献:
名称:
Pyridine compounds useful for therapy or prophylaxis of a disease
Modulators of Crth-2 Receptor Activity for the Treatment of Prostaglandin D2 Mediated Diseases
申请人:Bonnert Victor Roger
公开号:US20070249686A1
公开(公告)日:2007-10-25
The invention relates to substituted acids as useful pharmaceutical compounds for treating respiratory disorders as asthma, pharmaceutical compositions containing them, and processes for their preparation.
The invention relates to chemical compounds and complexes that can be used in therapeutic and diagnostic applications.
本发明涉及可用于治疗和诊断应用的化合物和复合物。
1-(4-Amino-3,5-dichlorophenyl)-2-(substituted amino)ethanol derivatives and their use in the treatment of respiratory disease
申请人:GLAXO GROUP LIMITED
公开号:EP0278728A2
公开(公告)日:1988-08-17
The invention provides compounds of the general formula
wherein
X represents a bond, or a C1-6alkylene, C2-6alkenylene or C2-6alkynylene chain, and
Y represents a bond, or a C1-6alkylene, C2-6alkenylene or C2-6alkynylene chain with the proviso that the sum total of carbon atoms in X and Y is not more than 10;
R1 and R2 each represent a hydrogen atom or a C1-3alkyl group, with the proviso that the sum total of carbon atoms in R1 and R2 is not more than 4; and
Py represents a pyridyl group substituted by one or two substituents selected from nitro, -(CH2)tR3, -NR4R5, -(CH2)rSO2NR4R5, -NR6COR3, -NR6S02R7, -(CH2)rCOR3, -OCH2COR3 and -O(CH2)qR3; where
R3 represents a hydroxy, C1-3alkoxy or NR4R6 group;
R4 and R5 each represent a hydrogen atom or a C1-4alkyl group or -NR4R5 forms a saturated heterocyclic amino group which has 5-7 ring members and optionally contains in the ring one or more atoms selected from -O- and -S- or a group -NH- or -N(CH3)-;
R6 represents a hydrogen atom or a C1-4alkyl group;
R7 represents a C1-4alkyl, phenyl or -NR4R6 group;
q represents an integer 2 or 3;
r represents an integer from 0 to 3; and
t represents an integer 1, 2 or 3;
and physiologically acceptable salts and solvates (eg. hydrates) thereof.
The compounds have a stimulant action at β2-adreno receptors and may be used in the treatment of diseases associated with reversible airways obstruction such as asthma and chronic bronchitis.
Pyridine compounds useful for therapy or prophylaxis of a disease
申请人:Glaxo Group Limited
公开号:US04921867A1
公开(公告)日:1990-05-01
Compounds of formula (I) ##STR1## wherein X and Y each represent a bond or an alkylene, alkenylene or alkynylene chain; R.sup.1 and R.sup.2 each represent a hydrogen atom or a lower alkyl group; and Py represents a pyridyl group having one or two substituents. The compounds have a stimulant action at beta.sub.2 -adrenoreceptors. The compounds may be used in the treatment of diseases associated with reversible airway obstruction such as asthma and chronic bronchitis.