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Read all about Organic Spectroscopy on ORGANIC SPECTROSCOPY INTERNATIONAL 

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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 AFRICURE PHARMA, ROW2TECH, CLEANCHEM LABS as ADVISOR, earlier assignment was with GLENMARK LIFE SCIENCES LTD, as CONSUlTANT, Retired from GLENMARK in Jan2022 Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 32 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 Open superstar 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 32 PLUS year tenure till date Feb 2023, Around 35 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 100 million plus hits on Google, 2.5 lakh plus connections on all networking sites, 100 Lakh plus views on dozen plus blogs, 227 countries, 7 continents, He makes himself available to all, contact him on +91 9323115463, email, Twitter, @amcrasto , He lives and will die for his family, 90% paralysis cannot kill his soul., Notably he has 38 lakh plus views on New Drug Approvals Blog in 227 countries...... , He appreciates the help he gets from one and all, Friends, Family, Glenmark, Readers, Wellwishers, Doctors, Drug authorities, His Contacts, Physiotherapist, etc He has total of 32 International and Indian awards

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Cipla introduces Serroflo for respiratory treatment in Germany and Sweden

India-based Cipla has introduced Serroflo (salmeterol/fluticasone MDI) in Germany and Sweden to treat patients suffering from asthma.




Serroflo is expected to improve the affordability of fixed combinations in Europe and help manage health costs for respiratory treatment.

Cipla Europe head Frank Pieters said: “With Serroflo, we offer in Germany and Sweden an alternative, which is effective and efficient and therefore brings many advantages into a market, which suffers from limited resources.”

The new product is available under the name Serroflo in Germany, while it is introduced as Salmeterol/Fluticasone Cipla in Sweden.

Cipla’s shares have vaulted to a record high after the launch of first of its combination inhalers in Germany and Sweden that marked its entry into Europe. Analysts say the launch will lead to a gradual rerating of the stock of the drug maker which has been underperforming its peers.
Cipla launches combination inhalers in Germany and Sweeden; stocks touch all time high, may trigger rerating


FDA has granted tentative approval to India-based Strides Arcolab’s HIV drug emtricitabine and tenofovir disoproxil fumarate tablets, 200 mg/300 mg.

chief executive and vice chairman Arun Kumar –Strides arcolab


Deepak Vaidya, chaiman

Headquartered in India, Strides Arcolab is a pharmaceutical company with a key focus on the development and manufacture of IP-led niche products, particularly sterile injectables. It is among the world’s largest manufacturers of soft gelatin capsules. With 14 world-class manufacturing facilities, an innovative R&D hub and a marketing network in 70 countries, Strides is well positioned to meet the demands of the global pharmaceutical industry and has partnered with several of the world’s leading pharmaceutical companies.

2 August 2013

Strides Arcolab’s HIV drug, which is generic version of Gilead Sciences’ Truvada, gets tentative approval from the US FDA.

Tentative approval implies that the drug has met all standards but cannot be marketed in the US due to existing patent protections Good news for HIV AIDS patients

FDA has granted tentative approval to India-based Strides Arcolab’s HIV drug emtricitabine and tenofovir disoproxil fumarate tablets, 200 mg/300 mg. The drug is a generic version of Truvada, 200 mg/300 mg tablets, which is manufactured by Gilead Sciences.

The product is indicated for use in combination with other antiretroviral agents for the treatment of human immunodeficiency virus (HIV)-1






The selective tosylation of L-gulose with tosyl chloride in pyridine, followed by complete acetylation with acetic anhydride gives tetraacetyl-6-O-tosyl-L-gulose (II), which is treated with HBr in AcOH to yield the bromo derivative (III ). The reaction of (III) with potassium O-ethylxanthate in refluxing acetone, followed by deacetylation with NH4OH in methanol affords 1,6-thioanhydro-L-gulopyranose (IV). The selective oxidative cleavage of (IV) by means of NaIO4 , followed by reduction with NaBH4 and protection of the resulting diol with acetone and TsOH provides the acetonide (V), which is silylated at the primary OH group with TBDMS-Cl giving the silyl ether (VI). Elimination of the acetonide group with TsOH in methanol yields the diol (VII), which is cleaved with Pb (OAc) 4 and oxidized with PDC in DMF to afford the carboxylic acid (VIII). The treatment of (VII) with Pb (OAc) 4/pyridine in THF furnishes the diacetate (IX), which is condensed with N4-acetyl-5-fluoro-O-(trimethylsilyl) cytosine (X) by means of TBDMS-OTf in dichloromethane yielding a mixture of the desired (-) (2R, 5S) – isomer (XI) along with its (+) – (2R, 5R)-isomer that is separated by column chromatography. Finally, deacetylation of (XI) with ammonia in methanol, followed by desilylation with TBAF in THF afforded the target compound.
Jeong, LS; et al.; Asymmetric synthesis and biological evaluation of beta-L-(2R, 5S) – and alpha-L-(2R, 5R) -1, 3-oxathiolane-pyrimidine and-purine nucleosides as potential anti- HIV agents. J Med Chem 1993, 36, 2, 181

Celgene makes good start to 2013 as Revlimid hits $1 billion

April 26, 2013

Celgene makes good start to 2013 as Revlimid hits $1 billion

Celgene Corp has posted a healthy set of financials for the first quarter despite a 4.1% decline in net income to $410.2 million, as product sales increased 15% to $1.43 billion.  read more at————


(RS)-3-(4-amino-1-oxo 1,3-dihydro-2H-isoindol- 2-yl)piperidine-2,6-dione


REVLIMID® is an oral immunomodulatory drug marketed in the United States and many international markets, in combination with dexamethasone, for treatment of patients with multiple myeloma who have received at least one prior therapy. It is also marketed in the United States and certain international markets for the treatment of transfusion-dependent anemia due to low- or intermediate-1-risk myelodysplastic syndromes, or MDS, associated with a deletion 5q cytogenetic abnormality with or without additional cytogenetic abnormalitie.Revlimid Worldwide annual sales in 2011 was $3.2bLenalidomide (Revlimid) is a derivative of thalidomideintroduced in 2004.It was initially intended as a treatment for multiple myeloma, for which thalidomide is an accepted therapeutic treatment. Lenalidomide has also shown efficacy in the class of hematological disorders known as myelodysplastic syndromes (MDS). Lenalidomide has significantly improved overall survival in myeloma (which generally carries a poor prognosis), although toxicity remains an issue for users. [1]It costs $163,381 per year for the average patient.[2]

Lenalidomide has been used to successfully treat both inflammatory disorders and cancers in the past 10 years. There are multiple mechanisms of action, and they can be simplified by organizing them as mechanisms of action in vitro and in vivo.[3] In vitro, lenalidomide has three main activities: direct anti-tumor effect, inhibition of the microenvironment support for tumor cells, and immunomodulatory role. In vivo, lenalidomide induces tumor cell apoptosis directly and indirectly by inhibition of bone marrow stromal cell support, by anti-angiogenic and anti-osteoclastogenic effects, and by immunomodulatory activity. Lenalidomide has a broad range of activities that can be exploited to treat many hematologic and solid cancers.

  1. McCarthy; Philip L. McCarthy, Kouros Owzar, Craig C. Hofmeister, et al. (May 10, 2012). “Lenalidomide after Stem-Cell Transplantation for Multiple Myeloma”N Engl J Med 366 (19): 1770–1781. doi:10.1056/NEJMoa1114083PMID 22571201.
  2. Badros, Ashraf Z. Badros (May 10, 2012). “Lenalidomide in Myeloma — A High-Maintenance Friend”N Engl J Med 366 (19): 1836–1838. doi:10.1056/NEJMe1202819PMID 22571206.
  3. Vallet S, Palumbo A, Raje N, Boccadoro M, Anderson KC (July 2008). “Thalidomide and lenalidomide: Mechanism-based potential drug combinations”. Leukemia & Lymphoma 49 (7): 1238–45. doi:10.1080/10428190802005191PMID 18452080.
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