503070-58-4

Usage

Uses

Used in [Application Industry]:
Benzeneacetic acid, α,α-diphenyl-, compd. with (α1R)-α1-[[[6-[2-[(2,6-dichlorophenyl)methoxy]ethoxy]hexyl]amino]methyl]-4-hydroxy-1,3-benzenedimethanol (1:1) is used as [application type] for [application reason].
For example, if it were used in the pharmaceutical industry, the application could be listed as:
Used in Pharmaceutical Industry:
Benzeneacetic acid, α,α-diphenyl-, compd. with (α1R)-α1-[[[6-[2-[(2,6-dichlorophenyl)methoxy]ethoxy]hexyl]amino]methyl]-4-hydroxy-1,3-benzenedimethanol (1:1) is used as a pharmaceutical compound for [specific medical application or treatment].

Preparation

Vilanterol trifenatate is synthesized by incorporation of an oxygen atom at the homobenzylic position of the right-hand side phenyl ring of (R)-salmeterol and has suitable chemical properties for inhaled administration. The combination in fluticasone furoate (FF) and vilanterol trifenatate (VI) in a single inhaler is the first once daily combination available on the market for the treatment of stable COPD.

Biological Activity

vilanterol trifenatate is a novel and selective agonist of β2-ar with a pec50 value of 10.37±0.05 [1].vilanterol trifenatate is a novel long-acting β2-ar agonist (laba) with 24h activity in development for inhaled once daily treatment. in the radioligand binding studies, vilanterol trifenatate has shown the binding affinity in the one-affinity site model with pkd values of 9.44±0.07 and 10.82±0.12 in the presence gpp(nh)p and absence gpp(nh)p, respectively. in dissociation studies, vilanterol trifenatate has been reported to bind from the β2-ar with a dissociation t1/2 value of 3.5 min in the presence of gpp(nh)p. vilanterol trifenatate has been found to have a good selectivity for β2-ar over the other β-ar receptor subtypes(β1and β3) with pec50 values of 10.37±0.05, 6.98±0.03 and 7.36±0.03, respectively. vilanterol trifenatate has exhibited at least 1000-fold selectivity over both β1-and β3-ar subtypes [1].

Dosage

The recommended and maximum dose is one inhalation of vilanterol trifenatate 25 micrograms once daily either morning or evening but at the same time every day.

Mode of action

Vilanterol Trifenatate is a selective long-acting beta2-receptor agonist (also referred to as a LABA). The pharmacologic effects of beta2-adrenoceptor agonist drugs, including vilanterol trifenatate, are at least in part attributable to stimulation of intracellular adenylate cyclase, the enzyme that catalyses the conversion of adenosine triphosphate (ATP) to cyclic-3',5'-adenosine monophosphate (cyclic AMP). Increased cyclic AMP levels cause relaxation of bronchial smooth muscle and inhibition of release of mediators of immediate hypersensitivity from cells, especially from mast cells.

Upstream product

• 452339-73-0 (5R)-5-(2,2-dimethyl- 4H-1,3-benzodioxin-6-yl)-1,3-oxazolidin-2-one 
• 503068-37-9 (2R)-hydroxy-2-(2,2-dimethyl-4Η-1,3-benzodioxole-6-yl)-N-3-[6-[2-[(2,6-dichlorophenyl)methoxy]ethoxy]hexyl]-ethylamine 
• 595-91-5 triphenylacetic acid 
• 20443-98-5 2,6-Dichlorobenzyl bromide 
• 15258-73-8 2,6-dichlorobenzyl alcohol 
• 503068-36-8 (5R)-3-{6-[(2-{[(2,6-dichlorophenyl)methyl]oxy}ethyl)oxy]-hexyl}-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-1,3-oxazolidin-2-one 
• 503070-57-3 2-((2-((6-bromohexyl)oxy)ethoxy)methyl)-1,3-dichlorobenzene 
• 743460-69-7 (R)-(2-bromo-1-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)ethoxy)(tert-butyl)dimethylsilane 
• 102293-80-1 2-bromo-1-(2,2-dimethyl-4H-benzo[d][1,3]dioxin-6-yl)ethanone 
• 503068-34-6 4-[(1R)-2-({6-[(2-{[(2,6-dichlorophenyl)methyl]oxy}ethyl)oxy]-hexyl}-amino)-1-hydroxyethyl]-2-(hydroxymethyl)phenol 

Relevant academic research and scientific papers

Enantiomeric separation of vilanterol trifenatate by chiral liquid chromatography

Vilanterol trifenatate is a novel chiral long-acting β2-agonist developed. Vilanterol combined with inhaled corticosteroids can treat COPD and asthma. A simple liquid chromatographic method is developed for the quantitative determination of R-vilanterol and S-vilanterol (impurity S). HPLC separation was achieved on Chiralpak ID (250?×?4.6?mm; particle size 5?μm) column using hexane-ethanol-ethanolamine (75:25:0.1, v/v/v) as mobile phase at a flow rate of 1.0?mL/min. The resolution is greater than 3.3. Ethanolamine in the mobile phase is vital to enhance chromatographic efficiency and resolution between the isomers. The method was validated with respect to accuracy, specificity, precision, LOD, LOQ, linearity, and robustness as ICH guidelines.

Vilanterol intermediate as well as preparation method and application thereof

The invention provides a vilanterol intermediate as well as a preparation method and application thereof, and relates to the technical field of chemical synthesis. According to the vilanterol intermediate, the compound shown in the formula I is salt of the compound shown in the formula II, the solid compound shown in the formula I is obtained from the oily compound shown in the formula II, the purity reaches up to 99.0% or above, when the compound shown in the formula I is used for preparing vilanterol and pharmaceutically acceptable salt thereof, purification through tedious separation methods such as column chromatography is not needed, materials are easy to measure accurately, the quality control of the vilanterol intermediate is facilitated, various defects caused by the fact that the compound shown in the formula II is an oily substance are effectively overcome, and the quality of vilanterol and pharmaceutically acceptable salt thereof can be better guaranteed.

AN IMPROVED PROCESS FOR PREPARATION OF VILANTEROL OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF

The invention discloses an improved process for preparation of Vilanterol or a pharmaceutically acceptable salt thereof with good yields and high purity.

Preparation method of vilanterol and salt thereof

The invention relates to a preparation method of vilanterol and a salt thereof. The preparation method comprises the following steps: in a solvent, reacting a mixture containing a compound shown as aformula I with succinic acid to obtain a compound shown as a formula II-1; and subjecting the obtained compound shown as the formula II-1 to reacting and conversion to obtain vilanterol and the salt thereof. The preparation method of the vilanterol and the salt thereof has the advantages of higher yield, high purity, easiness in refining, simplicity and convenience in operation and suitability forindustrialization.

Vilanterol triphenylacetic acid salt crystallization method

The invention discloses a Vilanterol triphenylacetic acid salt crystallization method, and belongs to the field of drug synthesis. According to the method, Vilanterol triphenylacetic acid salt is crystallized by a gradient cooling method in chlorinated hydrocarbon and low-alcohol mixed solvents. By the aid of the crystallization method, reaction yield and chemical purity are improved.

BIOCATALYTIC PROCESSES FOR THE PREPARATION OF VILANTEROL

A process for preparing Vilanterol includes a biocatalytic conversion of a ketone substrate to its corresponding alcohol, and then converting the obtained alcohol into Vilanterol. Polypeptides may be used for the biocatalytic conversion of the ketone substrate, such as 2-bromo-l-(2,2-dimethyl-4H-l,3-benzodioxin-6-yl)ethanone, to an enantiopure alcohol, (R)-2-bromo-l-(2,2-dimethyl-4H-l,3-benzodioxin-6-yl)ethanol for the preparation of Vilanterol. Also disclosed is vilanterol tartrate and solid state forms thereof for use as medicaments and for the preparation of other vilanterol salts, or of vilanterol, solid state forms and/or formulations thereof. Also disclosed is a process for the preparation of pharmaceutical formulations including vilanterol tartrate and solid state forms thereof, as well as a method of treating a person suffering from COPD and asthma by administering a therapeutically effective amount of any one or a combination of vilanterol tartrate and solid state forms thereof or a pharmaceutical composition and/or formulation comprising vilanterol tartrate and solid state forms thereof.

Synthesis and structure-activity relationships of long-acting β2 adrenergic receptor agonists incorporating metabolic inactivation: An antedrug approach

A series of saligenin β2 adrenoceptor agonist antedrugs having high clearance were prepared by reacting a protected saligenin oxazolidinone with protected hydroxyethoxyalkoxyalkyl bromides, followed by removal of the hydroxy-protecting group, alkylation, and final deprotection. The compounds were screened for β2, β1, and β3 agonist activity in CHO cells. The onset and duration of action in vitro of selected compounds were assessed on isolated superfused guinea pig trachea. Compound 13f had high potency, selectivity, fast onset, and long duration of action in vitro and was found to have long duration in vivo, low oral bioavailability in the rat, and to be rapidly metabolized. Crystalline salts of 13f (vilanterol) were identified that had suitable properties for inhaled administration. A proposed binding mode for 13f to the β2-receptor is presented.