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91 results about "Formoterol" patented technology

Formoterol is a long-acting bronchodilator used as a long-term (maintenance) treatment to prevent or decrease wheezing and trouble breathing caused by asthma or ongoing lung disease (chronic obstructive pulmonary disease-COPD, which includes chronic bronchitis and emphysema). It should only be used long-term if your asthma symptoms are not controlled by your other asthma medications (such as inhaled corticosteroids). Formoterol must not be used alone to treat asthma.

Unsymmetrical hydrogen migration synthesizing method for (R, R)-formoterol

The invention relates to an asymmetric hydrogen transfer synthesis method for (R,R)-formoterol, and relates to a novel method for synthesizing an optical pure beta 2-adrenoreceptor excitant, namely formoterol. The method comprises: firstly, taking 4-hydroxyl-3 nitroacetophenone as a raw material, using benzyl groups to protect phenolic hydroxyl groups, and obtaining alpha-bromo keto after bromination; secondly, taking (S,S)-Rh-PEG-BsDPEN as a catalyst and formic acid and derivatives of the formic acid as hydrogen sources, and synthesizing chiral alcohol intermediate by an asymmetric hydrogen transfer method; thirdly, using (R)-alpha-methyl phenylethylamine and methoxyl phenylacetone to generate imine compounds, and obtaining chiral amine intermediate through hydrogenation reduction under the catalysis of Pt / C; and fourthly, reacting and coupling the chiral alcohol intermediate and the chiral amine intermediate, removing protective groups, and obtaining the (R,R)-formoterol. The invention uses the asymmetric hydrogen transfer method and a chiral auxiliary reagent to synthesize the (R,R)-formoterol, and has high yield and good ee value. Compared with a method for synthesizing chiral formoterol through chemical splitting, the method has the advantages of high total yield, mild reaction conditions, low cost and so on, and is favorable for industrial production.
Owner:SUN YAT SEN UNIV

Asymmetric synthesis method of (R,R)-formoterol tartrate

The invention relates to an asymmetric synthesis method of (R,R)-formoterol tartrate, which comprises the following steps: by taking (S,S)-CsDPEN and transition metal complex as a catalyst, performing asymmetric hydrogen transfer reaction on alpha-bromoketone used as a raw material, thus obtaining a chiral alcohol intermediate compound; performing reaction steps of nitro-reduction, formylation, cyclization and the like, thus obtaining a key intermediate compound FM 1; by taking Pt / C as a catalyst and alpha-methylphenylethylamine as a chiral assistant, synthesizing an intermediate compound FM 2-3; performing tartaric acid salification, ionization and alpha-methylphenethyl removal, and reacting with benzaldehyde, thus preparing a chiral amine intermediate compound FM 2; reacting and coupling the two key intermediate compounds, and performing protective group removal to obtain (R,R)-formoterol FM 4; and performing tartaric acid salification on the FM 4, thus preparing the target product (R,R)-formoterol tartrate FM 5. According to the invention, the (R,R)-formoterol is synthesized through an asymmetric hydrogen transfer method by means of the chiral assistant, and high yield and favorable ee value are achieved. Compared with a chemical resolution method for synthesizing chiral formoterol, the method provided by the invention has the advantages of high overall yield, mild reaction conditions, low cost and the like, thereby being beneficial to industrial production.
Owner:SUN YAT SEN UNIV +1

Medicine composition with tiotropium bromide and formoterol, application of medicine composition and preparation

InactiveCN105125542AEnhance diastolic abilityReduce omissionAntipyreticAnalgesicsTiotropium bromideObstructive Pulmonary Diseases
The invention relates to the technical field of medicine preparations, in particular to a medicine composition with tiotropium bromide and formoterol, application of the medicine composition and a preparation. The medicine composition comprises the tiotropium bromide or pharmaceutically acceptable salt of the tiotropium bromide and the formoterol or pharmaceutically acceptable salt of the formoterol. The medicine composition with the tiotropium bromide and the formoterol is applied to preparing medicine for treating respiratory and lung inflammatory diseases. The medicine composition is preferably a tiotropium bromide and formoterol composition with synergistic additive effects. The medicine composition, the application and the preparation have the advantages that as proved by pharmacodynamic experiments, the synergistic additive effects can be realized by the tiotropium bromide and the formoterol which are jointly applied, and accordingly bronchiectasis can be forcefully and quickly realized; the medicine composition and the preparation are used for treating the respiratory and lung inflammatory diseases, and preferably used for treating dyspnea such as bronchial asthma and chronic obstructive pulmonary diseases (COPD) due to bronchial constriction.
Owner:HANGZHOU ZIJIN PHARMA TECH
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