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Nanatinostat

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Nanatinostat Chemical Structure
ChemSpider 2D Image | CHR-3996 | C20H19FN6O2
Hdac inhibitor CHR-3996.png

Nanatinostat

Tractinostat

CHR-3996, CHR 3996, VRx 3996,

C20H19FN6O2, 394.41

CAS 1256448-47-1

2-[(1α,5α,6α)-6-[[(6-Fluoro-2-q

2-[(1R,5S,6R)-6-{[(6-fluoroquinolin-2-yl)methyl]amino}-3-azabicyclo[3.1.0]hexan-3-yl]-N-hydroxypyrimidine-5-carboxamide2-[(1R,5S,6s)-6-{[(6-Fluoro-2-quinolinyl)methyl]amino}-3-azabicyclo[3.1.0]hex-3-yl]-N-hydroxy-5-pyrimidinecarboxamide5-Pyrimidinecarboxamide, 2-[(1R,5S)-6-[[(6-fluoro-2-quinolinyl)methyl]amino]-3-azabicyclo[3.1.0]hex-3-yl]-N-hydroxy-Chroma Therapeutics Ltd. (Originator)

  • OriginatorChroma Therapeutics
  • DeveloperChroma Therapeutics; Viracta Therapeutics
  • ClassAmides; Antineoplastics; Pyrimidines; Quinolines; Small molecules
  • Mechanism of ActionHistone deacetylase inhibitors
  • Orphan Drug StatusYes – Post-transplant lymphoproliferative disorder; Plasmablastic lymphoma; T-cell lymphoma
  • Phase IILymphoma
  • Phase I/IIMultiple myeloma
  • Phase ISolid tumours
  • No development reportedGastric cancer; Nasopharyngeal cancer; Post-transplant lymphoproliferative disorder
  • 01 Jun 2021Phase-II clinical trials in Lymphoma (Combination therapy, Second-line therapy or greater) in North America, Europe, Asia (PO)
  • 18 May 2021Ninatinostat is still in phase I trials for Solid tumour in United Kingdom and Netherlands (Viracta Therapeutics pipeline, May 2021)
  • 18 May 2021Virata Therapeutics has patent protection for dose regimen in NAVAL-1 trial in USA

Nanatinostat is under investigation in clinical trial NCT00697879 (Safety Study of the Histone Deacetylase Inhibitor, CHR-3996, in Patients With Advanced Solid Tumours).

Nanatinostat is an orally bioavailable, second-generation hydroxamic acid-based inhibitor of histone deacetylase (HDAC), with potential antineoplastic activity. Nanatinostat targets and inhibits HDAC, resulting in an accumulation of highly acetylated histones, the induction of chromatin remodeling, and the selective transcription of tumor suppressor genes; these events result in the inhibition of tumor cell division and the induction of tumor cell apoptosis. This agent may upregulate HSP70 and downregulate anti-apoptotic Bcl-2 proteins more substantially than some first-generation HDAC inhibitors. HDACs, upregulated in many tumor cell types, are a family of metalloenzymes responsible for the deacetylation of chromatin histone proteins.

Patent

WO2006123121

https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2006123121

Example 44: N-Hvdroxy 2-(6-fr(6-fluoroαuinolin-2-yl)methvnamino)-3-azabicvclorS.I.OIhex-S-vDpyrimidine-δ-carboxamide

LCMS purity >98%, m/z 395 [M+H]+1H NMR (300 MHz, c/6-DMSO) δ: 2.30 (2H, s), 2.75 (1 H, s), 3.60 (2H, dm, J = 11.7 Hz), 3.88 (2H, d, J = 11.7 Hz), 4.69 (2H, br s), 7.66 (1 H, d, J = 8.4 Hz), 7.75 (1 H, td, J = 8.7, 3.0 Hz), 7.88 (1 H, dd, J = 9.3, 2.7 Hz), 8.48 (1 H, d, J = 8.4 Hz), 8.67 (2H, s), 9.01 (1 H, br s), 9.61 (1 H, br s), 11.09 (1 H, br s).

PATENT

WO-2021113694

Crystalline hydrate form A of N-hydroxy 2-{6-[(6-fluoro-quinolin-2-ylmethyl)-amino]-3-aza-bicyclo[3.1.0]hex-3-yl}pyrimidine-5-carboxamide ( nanatinostat ) .

Compound 1 is also known as nanatinostat, VRx-3996, or CHR-3996. It has been previously described in patents and patent applications, e.g. US patent 7,932,246 and US patent application 15/959,482, each of which is incorporated by reference in their entirety.

Compound 1

PATENT

WO2021071809 , claiming dosages for HDAC treatment with reduced side effects.

/////////Nanatinostat, CHR-3996, CHR 3996, VRx 3996, CHROMA, ORPHAN DRUG, Tractinostat, PHASE 2

FC1=CC=C2N=C(CN[C@H]3[C@]4([H])CN(C5=NC=CC(C(NO)=O)=N5)C[C@]34[H])C=CC2=C1
wdt-13

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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 AFRICURE PHARMA 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 amcrasto@gmail.com, 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......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 He has total of 32 International and Indian awards

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