| Company Name: |
J & K SCIENTIFIC LTD.
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| Tel: |
010-82848833 400-666-7788 |
| Email: |
jkinfo@jkchemical.com |
| Products Intro: |
Product Name:Zinterol
CAS:37000-20-7
Package:2.5Mg,25Mg
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| Company Name: |
3B Pharmachem (Wuhan) International Co.,Ltd.
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| Tel: |
821-50328103-801 18930552037 |
| Email: |
3bsc@sina.com |
| Products Intro: |
Product Name:Zinterol hydrochloride;N-[5-[2-[(1,1-DiMethyl-2-phenylethyl)aMino]-1-hydroxyethyl]-2-hydroxyphenyl]MethanesulphonaMidehydrochloride
CAS:37000-20-7
Purity:99% HPLC Package:1Mg ; 5Mg;10Mg ;100Mg;250Mg ;500Mg ;1g;2.5g ;5g ;10g
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| | N-(2-HYDROXY-5-(1-HYDROXY-2-(2-METHYL-1-PHENYLPROPAN-2-YLAMINO)ETHYL)PHENYL)METHANE
Basic information |
| | N-(2-HYDROXY-5-(1-HYDROXY-2-(2-METHYL-1-PHENYLPROPAN-2-YLAMINO)ETHYL)PHENYL)METHANE
Chemical Properties |
| Boiling point | 574.3±60.0 °C(Predicted) | | density | 1.282±0.06 g/cm3(Predicted) | | storage temp. | Store at +4°C | | solubility | Soluble to 5 mM in water and to 100 mM in DMSO | | form | Powder | | pka | 8.57±0.50(Predicted) |
| | N-(2-HYDROXY-5-(1-HYDROXY-2-(2-METHYL-1-PHENYLPROPAN-2-YLAMINO)ETHYL)PHENYL)METHANE
Usage And Synthesis |
| Originator | Zinterol
Hydrochloride,ZYF Pharm
Chemical | | Uses | Zinterol is a β2-adrenergic agonist. It can be used to induce smooth muscle relaxation in the lungs, gastrointestinal tract, uterus, and various blood vessels. | | Uses | Bronchodilator. | | Manufacturing Process | A). 2'-Hydroxy-5'-([N-(2-methyl-1-phenyl-2-propyl)glycyl]methane-
sulfonanilide hydrobromide:
To a solution of α,α-dimethylphenthylamine (120 g, 0.8 mole) in 1.1 liter of
acetonitrile is added 5'-bromoacetyl-2'-hydroxymethanesulfonanilide (108 g,
0.35 mole) in a period of 5 minutes. The resulting solution is refluxed for 5
minutes on a steam bath and then permitted to stand for 25 minutes at room
temperature after which it is chilled and acidified with 5 N ethanolic hydrogen
bromide. The acidified mixture is concentrated in vacuum until a thick slurry is
obtained. After standing overnight at room temperature, the slurry is filtered
and the crude product triturated with 2-butanone, filtered, washed with 2-
butanone and dried to 86.3 g, (54%), MP: 217.5-221°C (dec.).
B). 2'-Hydroxy-5'-(1-hydroxy-2-(2-methyl-1-phenyl-2-propylamino)ethyl)
methanesulfonanilide hydrobromide:
2'-Hydroxy-5'-([N-(2-methyl-1-phenyl-2-propyl)glycyl]methanesulfonanilide
hydrobromide (132 g, 0.29 mole is dissolved in 2 liters of hot methanol, the
methanolic solution is allowed to cool to room temperature and 13 g 10%
palladium on carbon catalyst suspended in 50 ml of water is added.
Hydrogenation of the stirred mixture is carried out under 1-3 atm. of pressure
for 17 hours during which time 0.31 mole of hydrogen is absorbed. The
catalyst is filtered and the filtrate concentrated under reduced pressure until a
thick slurry is obtained. Isoptopanpl is added tothed slurry and the mixture is
again concentrated in vacuum to remove water by azeotropic distillation.
Trituration of residual solid with 2-propanol and collection on a filter affords
100.5 g (76% yield) of desired product, MP: 194.5-195.5°C (dec.).
2'-Hydroxy-5'-(1-hydroxy-2-(2-methyl-1-phenyl-2-propylamino)ethyl)
methanesulfonanilide base:
2'-Hydroxy-5'-(1-hydroxy-2-(2-methyl-1-phenyl-2-propylamino)ethyl)
methanesulfonanilide hydrobromide (47.7 g) is refluxed with 100 ml of
methanol. The material only partly dissolves. A solution of 6.5 g of potassium
hydroxide in 25 ml of methanol is then added to the suspension followed by 1
L of water. The mixture is thoroughly stirred and cooled to 5-10°C. The
precipitate is collected on a filter and washed with water until a negative test
for bromide using silver nitrate is obtained. The product is dried in an oven at
65°C, yield 36 g. | | Therapeutic Function | Bronchodilator | | Biological Activity | Potent and selective β 2 -adrenoceptor agonist (pK B values are 8.3 and < 5.7 for β 2 and β 1 receptors respectively, as measured in human artery). |
| | N-(2-HYDROXY-5-(1-HYDROXY-2-(2-METHYL-1-PHENYLPROPAN-2-YLAMINO)ETHYL)PHENYL)METHANE
Preparation Products And Raw materials |
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