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ORGANIC SPECTROSCOPY

Read all about Organic Spectroscopy on ORGANIC SPECTROSCOPY INTERNATIONAL 

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DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO, Born in Mumbai in 1964 and graduated from Mumbai University, Completed his Ph.D from ICT, 1991,Matunga, Mumbai, India, in Organic Chemistry, The thesis topic was Synthesis of Novel Pyrethroid Analogues, Currently he is working with GLENMARK PHARMACEUTICALS LTD, Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 29 plus yrs, Prior to joining Glenmark, he has worked with major multinationals like Hoechst Marion Roussel, now Sanofi, Searle India Ltd, now RPG lifesciences, etc. He has worked with notable scientists like Dr K Nagarajan, Dr Ralph Stapel, Prof S Seshadri etc, He did custom synthesis for major multinationals in his career like BASF, Novartis, Sanofi, etc., He has worked in Discovery, Natural products, Bulk drugs, Generics, Intermediates, Fine chemicals, Neutraceuticals, GMP, Scaleups, etc, he is now helping millions, has 9 million plus hits on Google on all Organic chemistry websites. His friends call him worlddrugtracker. His New Drug Approvals, Green Chemistry International, All about drugs, Eurekamoments, Organic spectroscopy international, etc in organic chemistry are some most read blogs He has hands on experience in initiation and developing novel routes for drug molecules and implementation them on commercial scale over a 29 year tenure till date Aug 2016, Around 30 plus products in his career. He has good knowledge of IPM, GMP, Regulatory aspects, he has several International patents published worldwide . He has good proficiency in Technology transfer, Spectroscopy, Stereochemistry, Synthesis, Polymorphism etc., He suffered a paralytic stroke/ Acute Transverse mylitis in Dec 2007 and is 90 %Paralysed, He is bound to a wheelchair, this seems to have injected feul in him to help chemists all around the world, he is more active than before and is pushing boundaries, He has 9 million plus hits on Google, 2.5 lakh plus connections on all networking sites, 25 Lakh plus views on dozen plus blogs, He makes himself available to all, contact him on +91 9323115463, email amcrasto@gmail.com, Twitter, @amcrasto , He lives and will die for his family, 90% paralysis cannot kill his soul., Notably he has 13 lakh plus views on New Drug Approvals Blog in 212 countries......https://newdrugapprovals.wordpress.com/ , He appreciates the help he gets from one and all, Friends, Family, Glenmark, Readers, Wellwishers, Doctors, Drug authorities, His Contacts, Physiotherapist, etc

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Suven Life gets patent for neuro-degenerative drug


March 16, 2015

Drug firm Suven Life Sciences has been granted a patent each by the US and New Zealand for a drug used in the treatment of neuro-degenerative diseases.

The patents are valid until 2030 and 2031, respectively, Suven Life Sciences said in a filing to the BSE.

Commenting on the development, Suven Life CEO Venkat Jasti said: “We are very pleased by the grant of these patents to Suven for our pipeline of molecules in CNS arena that are being developed for cognitive disorders with high unmet medical need with huge market potential globally.”

SUVEN, Chief executive and chairman Venkat Jasti

The company has “secured patents in USA and New Zealand to one of their new chemical entity (NCE) for CNS therapy through new mechanism of action – H3 Inverse agonist…,” Suven Life Sciences said.

With these new patents, Suven has a total of 20 granted patents from US and 23 granted patents from New Zealand.

“These granted patents are exclusive intellectual property of Suven and are achieved through the internal discovery research efforts.

“Products out of these inventions may be out-licensed at various phases of clinical development like at Phase-I or Phase-II,” Suven said.

Pdf Link: Suven Life Sciences secures 2 (two) Product Patents for their NCE’s through New mechanism of action – H3 Inverse Agonist in USA & New Zealand

http://www.bseindia.com/xml-data/corpfiling/AttachLive/suven_life_sciences_ltd_160315.pdf

Suven Life Sciences secures 2 (two) Product Patents for their NCE’s through New mechanism of action – H3 Inverse Agonist in USA & New Zealand HYDERABAD, INDIA (March 16, 2015) – Suven Life Sciences Ltd (Suven) announced today that they secured patents in USA (us 8912179) and New Zealand (614567) to one of their New Chemical Entity (NCE) for CNS therapy through new mechanism of action – H3 Inverse agonist and these patents are valid until 2030 and 2031 respectively. The granted claims of the patent include the class of selective H3 ligands discovered by Suven and are being developed as therapeutic agents and are useful in the treatment of cognitive impairment associated with neurodegenerative disorders

 

Suven Life Sciences Ltd.
6th Floor, SDE Serene Chambers,
Avenue – 7, Road No. 5, Banjara Hills,
Hyderabad-500 034, Telangana, INDIA

Phone : +91-40-2354-1142, 2354-3311
Fax     : +91~40~2354-1152
Email id: info@suven.com

 

INDIAN PATENT

 

  • Nirogi, Ramakrishna; Shinde, Anil Karbhari; Kambhampati, Ramasastri; Namala, Rambabu; Dwarampudi, Adi Reddy; Kota, Laxman; Gampa, Murlimohan; Kodru, Padmavathi; Tiriveedhi, Taraka Naga Vinaykumar; Kandikere, Vishwottam Nagaraj; et al
  • From Indian Pat. Appl. (2012), IN 2010CH02551

 

 

 

PATENT

http://www.google.com/patents/US8912179

The present invention relates to heterocyclyl compounds of formula (I) and their pharmaceutically acceptable salts, its process of preparation and compositions containing them, for the treatment of various disorders that are related to Histamine H3 receptors.

Figure imgf000003_0001
ONE EXAMPLE
EXAMPLE 1
Example 1
Preparation of 1-[2-(1-Cyclobutyl-piperidin-4-yloxy)-6,7-dihydro-4H-thiazolo[5,4-c]pyridin-5-yl]-propan-1-one tartrate
Step (i): Preparation of 2-(1-Cyclobutyl-piperidin-4-yloxy)-6,7-dihydro-4H-thiazolo[5,4-c]pyridine-5-carboxylic acid tert-butyl ester

1-Cyclobutyl-piperidin-4-ol (1.6 grams, 10 mmol) in tetrahydrofuran (20 mL) was treated with cooled and stirred suspension of sodium hydride (0.9 grams, 18 mmol) in tetrahydrofuran (20 mL) slowly over a period of 30 minutes; the reaction mixture was stirred for 1 hour. A solution of 2-Bromo-6,7-dihydro-4H-thiazolo[5,4-c]pyridine-5-carboxylic acid tert-butyl ester (3 grams, 9 mmol, obtained in preparation 1) in tetrahydrofuran (30 mL) was added drop wise over a period of 15 minutes and refluxed the reaction for 6 hours. Reaction mass was quenched with ice cold water and the product was extracted with ethyl acetate (3×50 mL). Combined organics were washed with water followed by brine and dried over anhydrous sodium sulphate. Organic volatiles were evaporated under vacuum. The residue was purified by flash chromatography (ethylacetate/n-hexane, 1/1) to obtain the title compound (2.0 grams).

1H-NMR (δ ppm): 1.48 (9H, s), 1.65-1.72 (2H, m), 1.85-1.92 (4H, m), 2.01-2.07 (4H, m), 2.18-2.19 (2H, m), 2.57 (2H, m), 2.62-2.66 (2H, m), 2.71-2.75 (1H, m), 3.70 (2H, m), 4.43 (2H, m), 4.93 (1H, m);

Mass (m/z): 394.2 (M+H)+.

Step (ii): Preparation of 2-(1-Cyclobutyl-piperidin-4-yloxy)-4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridineA solution of 2-(1-Cyclobutyl-piperidin-4-yloxy)-6,7-dihydro-4H-thiazolo[5,4-c]pyridine-5-carboxylic acid tert-butyl ester (2.0 grams, 5 mmol, obtained in above step) in dichloromethane (30 mL) was treated with trifluroacetic acid (5.0 mL, 50 mmol) at 0° C. Reaction mass was stirred for 4 hours. After completion of reaction, the reaction mass was quenched into ice cold water and adjust pH to 10, by using 40% aqueous sodium hydroxide solution. The product was extracted with dichloromethane (3×50 mL), combined organics were washed with water followed by brine and dried over anhydrous sodium sulphate. Organic volatiles were evaporated under vacuum to obtain the title compound (1.3 grams).

1H-NMR (δ ppm): 1.68-1.74 (2H, m), 1.85-1.93 (4H, m), 2.06 (4H, m), 2.19 (2H, m), 2.60-2.61 (4H, m), 2.73-2.80 (1H, m), 2.90-3.10 (1H, m), 3.13-3.16 (2H, m), 3.85 (2H, s), 4.90-4.93 (1H, m);

Mass (m/z): 294.2 (M+H)+.

Step (iii): Preparation of 1-[2-(1-Cyclobutyl-piperidin-4-yloxy)-6,7-dihydro-4H-thiazolo[5,4-c]pyridin-5-yl]-propan-1-oneA solution of 2-(1-Cyclobutyl-piperidin-4-yloxy)-4,5,6,7-tetrahydro-thiazolo[5,4-c]pyridine (1.3 grams, 4 mmol, obtained in above step) and triethylamine (1.9 mL, 13 mmol) in dichloromethane (30 mL) was cooled to 0° C. Propionylchloride (0.4 mL, 5 mmol) in dichloromethane (5 mL) was added drop wise over a period of 15 minutes and stirred the reaction for 30 minutes. Reaction mass was poured onto ice cold water and the product was extracted with ethyl acetate (3×50 mL). Combined organics were washed with water followed by brine and dried over anhydrous sodium sulphate. Organic volatiles were evaporated under vacuum. The residue was purified by flash chromatography (methanol/chloroform, 2/98) to obtain the title compound (1.0 gram).

1H-NMR (δ ppm): 1.17-1.21 (3H, m), 1.65-1.72 (5H, m), 1.87-1.91 (4H, m), 2.01-2.07 (4H, m), 2.22 (1H, m), 2.38-2.45 (2H, m), 2.45 (1H, m), 2.68-2.76 (3H, m), 3.72-3.74 (1H, m), 4.47-4.62 (2H, m), 4.92-4.94 (1H, m).

Mass (m/z): 350.4 (M+H)+.

Step (iv): Preparation of 1-[2-(1-Cyclobutyl-piperidin-4-yloxy)-6,7-dihydro-4H-thiazolo[5,4-c]pyridin-5-yl]-propan-1-one tartrateA solution of 1-[2-(1-Cyclobutyl-piperidin-4-yloxy)-6,7-dihydro-4H-thiazolo[5,4-c]pyridin-5-yl]-propan-1-one (0.8 grams, 2.3 mmol, obtained in above step) in methanol (10 mL) was treated with L(+)-Tartaric acid (0.34 grams, 2.3 mmol) at 0° C. Stirred the reaction mass for about 1 hour and the solvent was evaporated under vacuum to dryness. The solids were washed with diethyl ether and dried under vacuum to obtain the title compound (1.1 grams).

1H-NMR (δ ppm): 1.12-1.20 (3H, m), 1.82-1.87 (2H, m), 2.16-2.32 (7H, m), 2.45-2.55 (2H, m), 2.63-2.66 (3H, m), 2.72 (1H, m), 3.20 (2H, m), 3.47-3.50 (1H, m), 3.66-3.70 (1H, m), 3.81-3.88 (2H, m), 4.45 (2H, s), 4.60 (2H, s), 5.18 (5H, m);

Mass (m/z): 350.4 (M+H)+.

Publication number US8912179 B2
Publication type Grant
Application number US 13/818,152
PCT number PCT/IN2010/000740
Publication date Dec 16, 2014
Filing date Nov 15, 2010
Priority date Sep 2, 2010
Also published as CA2812970A1, 4 More »
Inventors Ramakrishna Nirogi, Anil Karbhari Shinde,Ramasastri Kambhampati, Rambabu Namala,Adi Reddy Dwarampudi, Laxman Kota,Murlimohan Gampa, Padmavathi Kodru,Taraka Naga Vinaykumar Tiriveedhi,Vishwottam Nagaraj Kandikere, Nageshwara Rao Muddana, Ramanatha Shrikantha Saralaya, Pradeep Jayarajan, Dhanalakshmi Shanmuganathan, Ishtiyaque Ahmad,Venkateswarlu Jasti, Less «
Original Assignee Suven Life Sciences Limited
Export Citation BiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet

……………….

Banjara Hills,Hyderabad

Banjara Hills, Hyderabad, Telangana
Map of Banjara Hills, Hyderabad
TAJ KRISHNA
SUBWAY RESTAURANT
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Newzealand’s PHARMAC is seeking feedback on a proposal to list pegfilgrastim (Neulastim) and tocilizumab (Actemra) , from 1 July 2013, with Roche Products (NZ) Limited.


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NEWZEALAND

Tocilizumab and pegfilgrastim

12 April 2013

PHARMAC is seeking feedback on a proposal to list pegfilgrastim (Neulastim) for prevention of neutropenia in patients undergoing cancer chemotherapy, and tocilizumab (Actemra) for systemic juvenile idiopathic arthritis, from 1 July 2013, through a provisional agreement with Roche Products (NZ) Limited.

Feedback sought

PHARMAC welcomes feedback on this proposal. To provide feedback, please submit it in writing by 5:00 pm on Monday 29 April 2013 to:

Geraldine MacGibbon
Senior Therapeutic Group Manager

Email: geraldine.macgibbon@pharmac.govt.nz

Fax: 04 460 4995

Post: PO Box 10 254, Wellington 6143.

All feedback received before the closing date will be considered by PHARMAC’s Board (or Chief Executive acting under delegated authority) prior to making a decision on this proposal.

http://www.pharmac.health.nz/news/item/tocilizumab-and-pegfilgrastim

 

Tocilizumab (INN, or atlizumab, developed by Hoffmann–La Roche and Chugai and sold under the trade names Actemra and RoActemra) is an immunosuppressive drug, mainly for the treatment of rheumatoid arthritis (RA) and systemic juvenile idiopathic arthritis, a severe form of RA in children. It is a humanized monoclonal antibody against the interleukin-6 receptor (IL-6R). Interleukin 6 (IL-6) is a cytokine that plays an important role in immune response and is implicated in the pathogenesis of many diseases, such as autoimmune diseases, multiple myeloma and prostate cancer.

 

Pegfilgrastim is a PEGylated form of the recombinant human granulocyte colony-stimulating factor (GCSF) analog filgrastim. It serves to stimulate the level of white blood cells (neutrophils).

Amgen manufactures pegfilgrastim under the brand name Neulasta Which was mainly worked on by Martine Allard, and Roche under the name Neulastim. In India it is also marketed by Abbott Healthcare under the brand name Imupeg. The drug is prepared by coupling a 20 kDa polyethylene glycol (PEG) molecule to the N-terminus of the filgrastim protein. Pegfilgrastim has a human half-life of 15 to 80 hours, much longer than the parent filgrastim (3–4 hours).

Pegfilgrastim treatment can be used to stimulate the bone marrow to produce more neutrophils to fight infection in patients undergoing chemotherapy.

 

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