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DRUG APPROVALS BY DR ANTHONY MELVIN CRASTO
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Sponge molecules isolated and synthesized for drug trials
By scouring the oceans for disease-fighting molecules, researchers have identified two new anticancer compounds. Isolated from a sea sponge, the compounds represent a new class of the natural products called polyketides, many of which have biological activity. Because it’s not possible to extract sufficient amounts of the molecules from the sponges, the researchers also devised chemical syntheses that allowed them to make enough material to initiate clinical trials on one of the substances,
Cancer Fighters From The Sea
Natural Products: Sponge molecules isolated and synthesized for drug trials.
read all at
BENAZEPRIL SYNTHESIS
CAS NO AS HCl SALT
| 86541-75-5 |
The reaction of 3-bromo-1-phenylpropane (I) with KCN gives 4-phenylbutyronitrile (II), which is hydrolyzed to the corresponding butyric acid (III). The cyclization of (III) with polyphosphoric acid affords 1-tetralone (IV), which is brominated to 2-bromo-1-tetralone (V) and treated with hydroxylamine to give the oxime (VI). The Beckman rearrangement of (VI) yields 3-bromo-2,3,4,5-tetrahydro-1H-(1)benzazepin-2-one (VII), which is treated with sodium azide to afford the azide derivative (VIII). The N-alkylation of (VIII) with ethyl bromoacetate (IX) by means of KOH and tetrabutylammonium bromide in THF gives the N-alkylated azide (X), which is reduced by catalytic hydrogenation to the corresponding amine (XI). The hydrolysis of the ester group of (XI) with NaOH yields the free acetic acid derivative (XII), which is finally reductocondensed with ethyl 2-oxo-4-phenylbutyrate (XIII) by means of sodium cyanoborohydride
WO 2003092698 A1
Vivus has presented data on its already-approved but not-yet-marketed erectile dysfunction drug Stendra which shows that the treatment is effective for sexual activity within 15 minutes.
Stendra (avanafil) was given the green light by the US Food and Drug Administration over a year ago, but there has been no launch yet as Vivus has been seeking a partner. The latest data should be attractive to potential suitors and could help Stendra take on other phosphodiesterase type 5 (PDE5) inhibitors, notably Pfizer’s Viagra (sildenafil) but also Eli Lilly’s Cialis (tadalafil) and Bayer’s Levitra (vardenafil).
read all at
http://www.pharmatimes.com/Article/13-06-20/Vivus_ED_drug_gets_to_work_in_less_than_15_mins.aspx
Avanafil can be synthesized from a benzylamine derivative and a pyrimidine derivative:Yamada, K.; Matsuki, K.; Omori, K.; Kikkawa, K.; 2004, U.S. Patent 6,797,709
- A cutting that phenanthrene by a methylthio urea ( a ) and ethoxy methylene malonate ( 2 ) cyclization of 3 , chloride, phosphorus oxychloride get 4 , 4 with benzyl amine 5 occurred SNAr the reaction product after oxidation with mCPBA 6 . In pyrimidine, if the 2 – and 4 – positions are active simultaneously the same leaving group in the case, SNAr reaction occurs preferentially at 4 – position, but does not guarantee the 2 – side reaction does not occur. Here is an activity of the poor leaving group sulfide spans 2 – bit, and a good leaving group active chlorine occupy four – position, thus ensuring a high regioselectivity of the reaction. 4 – position after completion of the reaction, then the 2 – position of the group activation, where sulfide sulfoxide better than the leaving group. Amino alcohols 7 and 6 recurrence SNAr reaction 8 , 8 after alkaline hydrolysis and acid alpha amidation get that phenanthrene.
ALMIRALL-Product development pipeline
| Preclin. | Phase I | Phase II | Phase III | Registr. | Registration application | |||
|---|---|---|---|---|---|---|---|---|
    |
||||||||
| LAS190792 |  |
MABA |  |
>2014 | ||||
| Aclidinium bromide | |
Antimuscarinic |  |
Approved by the FDA & EMA | ||||
| AB + Formoterol (LAS40464) | |
Antimuscarinic + LABA |  |
Undisclosed | ||||
| Abediterol (LAS100977) + ICS | |
OD LABA + ICS |  |
>2014 | ||||
| LAS186323 | |
DHODH inhibitor |  |
Undisclosed | ||||
| Sativex® | |
CB agonist |  |
Undisclosed | ||||
| LAS189913 | |
S1P1 |  |
Undisclosed | ||||
| LAS41002 | |
Topical anti-inflamatory |  |
Registration application in EU | ||||
| LAS41004 | |
Combination |  |
2014 | ||||
| LAS41008 | |
Psoriaris |  |
Undisclosed | ||||
| Linaclotide | |
Guanylate cyclase type-C agonist |  |
Approved by the EMA | ||||
AB: Aclidinium Bromide | ICS: Inhaled Corticoesteroid | RA: Reumatoid Artritis | MS: Multiple Sclerosis
IBS-C: Irritable Bowel Syndrome with associated Constipation
http://www.almirall.com/webcorp2/cda/ImD_03_02.jsp?langSuscripcion=3
Let’s Set a Global Drug Quality Benchmark by Kiran M Shaw, Biocon
With Indian-made generics accounting for a US market share of over 25 per cent, it is not surprising that it is gaining significant mindshare of the Food and Drug Administration ( FDA). The spate of quality issues with leading Indian pharmaceutical companies in the past couple of years however should not be viewed in isolation. Big Pharma in the West, too, has been facing increasing flak from the FDA and other regulators over good manufacturing practice ( GMP) violations. High profile names like J& J, Genzyme (Sanofi), GSK, Sandoz, Watson, Teva and many others have encountered their share of quality problems and have been served with ‘warning letters’ from FDA
http://kiranmazumdarshaw.blogspot.in/2013/06/lets-set-global-drug-quality-benchmark.html
READ ALL AT THE LINK ABOVE
Adamas claims success with new and improved Parkinson’s drug
amantadine
Adamas claims success with new and improved Parkinson’s drug
Amantadine (trade name Symmetrel, by Endo Pharmaceuticals) is a drug that has US Food and Drug Administration approval for use both as an antiviral and an antiparkinsonian drug. It is the organic compound 1-adamantylamine or 1-aminoadamantane, meaning it consists of an adamantane backbone that has an amino group substituted at one of the four methyne positions. Rimantadine is a closely related derivative of adamantane with similar biological properties.
Apart from medical uses, this compound is useful as a building block, allowing the insertion of an adamantyl group.
According to the US Centers for Disease Control and Prevention, 100% of seasonal H3N2 and 2009 pandemic flu samples tested have shown resistance to adamantanes, and amantadine is no longer recommended for treatment of influenza in the United States. Additionally, its effectiveness as an antiparkinsonian drug is undetermined, with a 2003 Cochrane Review concluding that there was insufficient evidence in support or against its efficacy and safety.
Synthesis
Amantadine may be prepared by reacting adamantane with bromine or nitric acid to give the bromide or nitroester at position one. Reaction of either compound with acetonitrile affords the acetamide, which is hydrolyzed to give 1-adamantylamine:
British Alliance Pharma plc has bought the complete rights for Novartis’ obstetric drug Syntometrine
oxytocin
ergometrine
Oxytocin/ergometrine (trade name Syntometrine) is an obstetric combination drug. The components are synthetically produced oxytocin, a human hormone produced in thehypothalamus, and ergometrine, an alpha-adrenergic, dopaminergic and serotonin (5-HT2) receptor agonist.
Both substances cause the uterus to contract. An injection of syntometrine is given in thethird stage of labor, just after the birth of the child, to facilitate delivery of the placenta and to prevent postpartum hemorrhage by causing smooth muscle tissue in the blood vessel walls to narrow, thereby reducing blood flow.
British Alliance Pharma plc has bought the complete rights for Novartis’ obstetric drug Syntometrine.
The Chippenham-based specialty company already owns the UK rights to Syntometrine, an obstetric drug used in the final stage of labour. With the US$11.5m deal, Alliance Pharma adds Novartis’ assets in other countries to its portfolio. read all at
http://www.eurobiotechnews.eu/news/news/2013-02/alliance-pharma-bags-novartis-drug.html
Constituents And Factors Of Technology Transfer In Pharmaceutical Industry
Technology transfer is helpful to develop dosage forms in various ways as it provides efficiency in process, maintains quality of product, helps to achieve standardized process which facilitates cost effective production. It is the process by which an original innovator of technology makes its technology available to commercial partner that will exploit the technology.
Technology transfer is both integral and critical to drug discovery and development for new medicinal products. The cost of product development raises during pilot scale-up and initial production batch i.e. the critical path for success is dependent on completion of technology transfer to the production site at an affordable cost.
Technology transfer is defined as “The processes that are needed for successful progress from drug discovery to product development to clinical trials to full-scale commercialization.”
Forest Announces U.S. Availability of New Once-Daily NAMENDA XR
memantine
Forest Announces U.S. Availability of New Once-Daily NAMENDA XR
— Treatment for moderate to severe Alzheimer’s Disease is now available to patients in a convenient extended release formulation —
NYSE:FRX.NEW YORK–(BUSINESS WIRE)–Forest Laboratories, Inc. announced today that NAMENDA XR(TM) (memantine hydrochloride) once-daily formulation is now available in pharmacies throughout the United States. NAMENDA XR is approved by the U.S. Food and Drug Administration (FDA) for the treatment of moderate to severe dementia of the Alzheimer’s type.
http://www.pharmalive.com/once-daily-namenda-xr-launched-in-us
Memantine is the first in a novel class of Alzheimer’s disease medications acting on theglutamatergic system by blocking NMDA-type glutamate receptors. It was first synthesized by Eli Lilly and Company in 1968. Memantine is marketed under the brandsAxura and Akatinol by Merz, Namenda by Forest, Ebixa and Abixa by Lundbeck andMemox by Unipharm. Memantine has been shown to have a modest effect in moderate-to-severe Alzheimer’s disease and in dementia with Lewy bodies. Despite years of research, there is little evidence of effect in mild Alzheimer’s disease.
Cempra Provides Guidance on the Clinical Program Required for Regulatory Approval for Solithromycin for Community-Acquired Bacterial Pneumonia (CABP)
solithromycin
(3aS,4R,7S,9R,10R,11R,13R,15R,15aR)-1-[4-[4-(3-aminophenyl)-1H-1,2,3-triazol-1-yl]butyl]-4-ethyl-7-fluorooctahydro-11-methoxy-3a,7,9,11,13,15-hexamethyl-10-{[3,4,6-trideoxy-3-(dimethylamino)-β-D–xylo-hexopyranosyl]oxy}-2H-Oxacyclotetradecino[4,3-d]oxazole-2,6,8,14(1H,7H,9H)-tetrone
| Legal status | Phase III clinical trials, North America, South America, Europe |
|---|---|
| Routes | oral, intravenous |
| Identifiers | |
| CAS number | 760981-83-7 |
Cempra Provides Guidance on the Clinical Program Required for Regulatory …
The Herald | HeraldOnline.com
The Phase 3 solithromycin clinical program in CABP will be planned to consist of an oral trial and an intravenous (IV)-to-oral clinical trial. Cempra followed the CABP guidance that the FDA proposed in a November, 2011, meeting of the Anti-Infective …
READ ALL AT
http://www.heraldonline.com/2013/06/13/4944834/cempra-provides-guidance-on-the.html
Solithromycin (formerly known as CEM-101 and OP-1068) is a novel ketolide antibiotic undergoing clinical development for the treatment of community-acquired pneumonia (CAP) and other infections.It is expected to be the first macrolide antibiotic available in intravenous, oral, and pediatric suspension formulations in over 20 years.
Solithromycin exhibits excellent in vitro activity against a broad spectrum of Gram-positive respiratory tract pathogens, including macrolide-resistant strains. Solithromycin has activity against a wide variety of pathogens, and further research is being conducted for other infections.
- May 2011: Solithromycin is in a Phase 2 clinical trial for serious community-acquired bacterial pneumonia (CABP) and in a Phase 1 clinical trial with an intravenous formulation.
- September 2011 : Encouraging results from the phase 2 clinical trial versus levofloxacin were reported.
New Drug Approvals 