摘要:
The present invention relates to a crystalline polymorph of 2-[4-[2-[[(1 S ,2 R )-2-hydroxy-2-(4-hydroxyphenyl)-1-methylethyl]amino]ethyl]phenoxy]acetic acid having strong diffraction peaks (diffraction angle: 2 ± 0.1°) at 10.8, 19.1, 19.3, 19.8, 20.6 and 27.0° in powder x-ray diffraction pattern, which has potent β 2 - and β 3 - adrenoceptor stimulating effects and is useful as an agent for relieving pain and promoting the removal of calculi in urolithiasis, and the like. For example, the crystalline polymorph can be prepared by hydrolyzing ethyl 2-[4-[2-[[1 S ,2 R )-2-hydroxy-2-(4-hydroxyphenyl)-1-methylethyl]amino]ethyl]phenoxy]acetate phosphate by sodium hydroxide, adding an aqueous phosphoric acid solution at 40 °C and over, adding a mixed solvent of water and methanol or methanol to the resulting compound, and stirring the suspension at 40 °C to reflux temperature for 30 minutes to several hours.
摘要:
Intermediates represented by the following general formula (I), etc. which are useful in producing phenoxyacetic acid derivatives represented by the following general formula (X) or pharmaceutically acceptable salts thereof having an effect of stimulating β3-adrenalin receptor and being useful as preventives or remedies for obesity, hyperglycemia, diseases caused by enteric movement disorders, urinary frequency, urinary incontinence, depression or biliary calculus; a process for producing these intermediates; and a method of using the same: (I) (X) wherein R1 and R2 independently represent each lower alkyl.
摘要:
Phenylethanolaminotetralincarboxamide derivative represented by general formula (I) and pharmacologically acceptable salts thereof, wherein A represents lower alkylene; B represents amino, di(lower alkyl)amino or 3- to 7-membered alicyclic amino which may bear oxygen on the ring; the asterisked carbon atom represents a carbon atom with an R- or S-configuration or a mixture of such atoms; and the carbon atom labeled with (S) represents a carbon atom with an S-configuration. These compounds have selective β2-adrenergic receptor stimulating effects while reducing the burden on the heart, such as tachycardia, and are useful as preventives for threatened abortion and premature birth, bronchodilator, and agents for remission and lithagogue for urinary calculus.
摘要:
Novel phenylaminoalkylcarboxylic acid derivatives represented by general formula (I) and pharmacologically acceptable salts thereof, which have an excellent effect of stimulating β3-adrenergic receptor and are useful as preventives or remedies for obesity, hyperglycemia, diseases caused by accelerated intestinal motion, frequent urination or urinary incontinence, depression, cholelithiasis, diseases caused by accelerated biliary motion, etc. In said formula, R1 represents hydroxy, lower alkyl, aralkoxy, amino, alicyclic amino optionally substituted by hydroxy or lower alkyl, or mono- or di(lower alkyl)amino; R2 represents hydroxy or lower alkyl; R3 represents hydrogen or halogeno; R?4 and R5¿ represent each hydrogen, halogeno or lower alkyl; A represents lower alkylene; the carbon atom bearing the mark (R) is a carbon atom with the (R) configuration; and the carbon atom bearing the mark (S) is one with the (S) configuration.
摘要:
Novel aminoethylphenoxyacetic acid derivatives represented by general formula (I) and pharmacologically acceptable salts thereof, which have effects of stimulating both of beta 2- and beta 3-adrenergic receptors and are useful in the pain remission and calculi removal promotion in urinary lithiasis; wherein R represents hydrogen, lower alkyl or aralkyl; R represents hydrogen or halogeno; and the carbon atoms with the marks of (R) and (S) are those having the (R)- and (S)-configurations respectively.
摘要:
Novel phenoxyacetic acid derivatives represented by general formula (I), and pharmacologically acceptable salts thereof, which exhibit an excellent beta 3-adrenergic receptor stimulating effect and are useful as preventive or therapeutic agents for obesity, hyperglycemia, diseases due to hyperkinesia of intestine, pollakiuria, urinary incontinence, depression, cholelithiasis or diseases due to hyperkinesia of biliary tract: wherein R is hydroxyl or the like; one of R and R is hydrogen, halogeno or the like, and the other thereof is hydrogen; and R is halogeno or the like.
摘要:
3,4-Disubstituted phenylethanolaminotetralincarboxylate derivatives represented by general formula (I) and pharmacologically acceptable salts thereof, wherein Q represents vinylene or a group represented by the general formula -A-(CH2)m- (wherein A represents oxygen or methylene, and m represents an integer of 1 to 6); R represents hydrogen or lower alkyl; n represents an integer of 1 or 2; the asterisked carbon atom represents a carbon atom with an R- or S- configuration or a mixture of such atoms; and the carbon atom labeled with (S) represents a carbon atom with an S-configuration. These compounds have selective beta 2-adrenergic receptor stimulating effects while reducing the burden on the heart, such as tachycardia, and are useful as preventives for threatened abortion and premature birth, bronchodilator, and agents for remission and lithagogue for urinary calculus.
摘要:
Novel 2-methylpropionic acid derivatives represented by general formula (I) and pharmacologically acceptable salts thereof which have an excellent beta 3 adrenaline receptor stimulating effect and are useful as preventives or remedies for obesity, hyperglycemia, diseases caused by accelerated intestinal motion, frequent urination, urinary incontinence, depression, cholelithiasis or diseases caused by accelerated biliary motion. In said Formula (I) R represents hydrogen, lower alkyl or aralkyl; R represents hydrogen, lower alkyl or halogeno; A represents oxygen or imino; the carbon atom to which (R) is attached stands for one with the R-configuration; and the carbon atom to which (S) is attached stands for one with the S-configuration.