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Zucapsaicin (Zuacta)

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Chemical structure of zucapsaicin

Zucapsaicin (Zuacta), cas 25775-90-0

Chemical name: (Z)-8-methyl-N-vanillyl-6-nonenamide
Molecular formula: C18H27NO3
Molecular mass: 305.41

E merck

Civamide, cis-Capsaicin,

Civanex (zucapsaicin) cream is a TRPV-1 modulator in development for the treatment of signs and symptoms of osteoarthritis of the knee.
Zucapsaicin, the cis-isomer of the natural product capsaicin, is a
topical analgesic that was initially developed by Winston Pharmaceuticals
and approved in Canada in July 2010 for the treatment of
severe pain in adults with osteoarthritis of the knee.

Bronson, J.; Dhar, M.; Ewing, W.; Lonberg, N. In Annual Reports in MedicinalChemistry; John, E. M., Ed.; Academic Press, 2011; Vol. 46, p 433.

The advantagesof zucapsaicin compared with naturally-occurring capsaicin, are reported to be a lesser degree of local irritation (stinging, burning,

erythema) in patients and a greater degree of efficacy in preclinical
animal models of pain.

Bernstein, J. E. U.S. 5063060, 1991.
Bernstein, J. E. U.S. 20050084520 A1, 2005.

The analgesic action of both
zucapsaicin and capsaicin is mediated through the transient receptor
potential vanilloid type 1 (TRPV1) channel, a ligand-gated ion
channel expressed in the spinal cord, brain, and localized on neurons
in sensory projections to the skin, muscles, joints, and
gut.

Westaway, S. M. J. Med. Chem. 2007, 50, 2589.

The scale preparation of zucapsaicin likely parallels the original
approach described by Gannett and co-workers involving the
coupling of vanillylamine with (Z)-8-methylnon-6-enoyl chloride.

Gannett, P. M.; Nagel, D. L.; Reilly, P. J.; Lawson, T.; Sharpe, J.; Toth, B. J. Org.Chem. 1988, 53, 1064.

Orito and co-workers elaborated this original approach in
an effort to prepare both capsaicin and zucapsaicin on gram-scale,

Kaga, H.; Miura, M.; Orito, K. J. Org. Chem. 1989, 54, 3477.

Zucapsaicin (Civanex) is a medication used to treat osteoarthritis of the knee and otherneuropathic pain. It is applied three times daily for a maximum of three months. It reduces pain, and improves articular functions. It is the cis-isomer of capsaicinCivamide, manufactured by Winston Pharmaceuticals, is produced in formulations for oral, nasal, and topical use (patch and cream).[1]

Zucapsaicin has been tested for treatment of a variety of conditions associated with ongoing nerve pain. This includes herpes simplex infections; cluster headaches andmigraine; and knee osteoarthritis.[2]

  1. Winston Pharmaceuticals websitehttp://www.winstonlabs.com/productdevelopment/civamide.asp
  2. Zucapsaicin information from the National Library of Medicinehttp://druginfo.nlm.nih.gov/drugportal
  3. http://products.sanofi.ca/en/zuacta.pdf

 

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DR ANTHONY CRASTO

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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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