WO2016159745A1 - Ethynylxanthines, preparation and use for cancer treatment - Google Patents
Ethynylxanthines, preparation and use for cancer treatment Download PDFInfo
- Publication number
- WO2016159745A1 WO2016159745A1 PCT/LV2015/000001 LV2015000001W WO2016159745A1 WO 2016159745 A1 WO2016159745 A1 WO 2016159745A1 LV 2015000001 W LV2015000001 W LV 2015000001W WO 2016159745 A1 WO2016159745 A1 WO 2016159745A1
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- WIPO (PCT)
- Prior art keywords
- alkyl
- purine
- dione
- amino
- alkoxy
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- SUONZPOFCBNQIY-UHFFFAOYSA-N CN(C(C([N+]([O-])=O)=C(N1C)Cl)=O)C1=N Chemical compound CN(C(C([N+]([O-])=O)=C(N1C)Cl)=O)C1=N SUONZPOFCBNQIY-UHFFFAOYSA-N 0.000 description 1
- ZOPMTVMJANWXKJ-UHFFFAOYSA-N CN(C(C([N+]([O-])=O)=C(N1C)Cl)=O)C1=O Chemical compound CN(C(C([N+]([O-])=O)=C(N1C)Cl)=O)C1=O ZOPMTVMJANWXKJ-UHFFFAOYSA-N 0.000 description 1
- VVSASNKOFCZVES-UHFFFAOYSA-N CN(C(CC(N1C)=O)=O)C1=O Chemical compound CN(C(CC(N1C)=O)=O)C1=O VVSASNKOFCZVES-UHFFFAOYSA-N 0.000 description 1
- KHJNKHYOLNOBSN-UHFFFAOYSA-N CN(C)CC#Cc1nc(N(C)C(N(C)C2=O)=O)c2[n]1C Chemical compound CN(C)CC#Cc1nc(N(C)C(N(C)C2=O)=O)c2[n]1C KHJNKHYOLNOBSN-UHFFFAOYSA-N 0.000 description 1
- YPENWWBLQQJRDL-UHFFFAOYSA-N CNC(N(C)C(N(C)C1=O)=O)=C1[N+]([O-])=O Chemical compound CNC(N(C)C(N(C)C1=O)=O)=C1[N+]([O-])=O YPENWWBLQQJRDL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D473/00—Heterocyclic compounds containing purine ring systems
- C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
- C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
- C07D473/06—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3
- C07D473/12—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3 with methyl radicals in positions 1, 3, and 7, e.g. caffeine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
- A61K31/519—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
- A61K31/52—Purines, e.g. adenine
- A61K31/522—Purines, e.g. adenine having oxo groups directly attached to the heterocyclic ring, e.g. hypoxanthine, guanine, acyclovir
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D473/00—Heterocyclic compounds containing purine ring systems
- C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
- C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
- C07D473/06—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D473/00—Heterocyclic compounds containing purine ring systems
- C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
- C07D473/04—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms
- C07D473/06—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3
- C07D473/10—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 two oxygen atoms with radicals containing only hydrogen and carbon atoms, attached in position 1 or 3 with methyl radicals in positions 3 and 7, e.g. theobromine
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
Definitions
- the present invention relates to novel ethynylxanthine derivatives, methods for their synthesis and use for the treatment and/or prevention of cancer.
- Cancer is one of the main causes of death among economically developed countries (Jermal, CA Cancer J. Clin., 2011, 61 69-90). According to the International Health Organization, more than 7 million people diagnosed with various forms of cancer, die each year (Jermal, CA Cancer J. Clin., 2010, 60, 277-300; Siegel, CA Cancer J. Clin. 2012, 62, 10-29). Unfortunately, the number of cancer diagnosis in past few years has increased almost twice. In clinical practice, the treatment of cancer involves a wide range of chemotherapy drugs. Besides, most of them exhibit various side effects, high toxicity and moderate selectivity. Therefore, a new generation of selective, low toxic anticancer agent development is one of the main tasks in medicinal chemistry and pharmaceutical industries.
- xanthine derivatives are able to cross through the blood brain barrier (BBB).
- BBB blood brain barrier
- anticancer drugs based on the structure of the natural purine analogues were developed (cladribine, fludarabine, mercaptopurine, thioguanine, clofarabine, nelai'abine, etc.). These are the first line therapy agents to cure hematologic malignant diseases.
- Caffeine derivatives possess CNS expression as calcium agonist or antagonist effect. Recent studies show that caffeine-containing coffee daily use is able to lower mouth and brain cancer formation up to 39% (Michaud, Am. J. Clin. Nutr. 2010, 92, 1145-50; Kang, Cancer. Res. 2010, 70, 1173-83). Also, it reduces the risk of women cervical cancer development. Caffeine reduces a chance of prostate cancer formation in men by 60%. The same effect was observed in ability to prevent breast, colon and hepatic cancer (Hepatology, 2007, 46, 430-435).
- Caffeine enhances doxorubicin, cisplatin activity in metastatic carcinomas, lymphomas, bone and soft tissue sarcomas (Hayashi, Anticancer Res., 2005, 25, 2399-2406). Also, caffeine effectively inhibits breast cancer resistance protein (BCRP) multidrug resistance (MDR) on MCF-7 and MCF-7/MX100 (mitoxantrone-resistant) cell lines.
- BCRP breast cancer resistance protein
- MDR multidrug resistance
- MCF-7 and MCF-7/MX100 mitoxantrone-resistant
- Drugs used in neuro-oncology have a limited ability to cross through the BBB and are highly toxic.
- caffeine analogues such as 8-(3- (dimethylamino)propoxy)caffeine (proxyfeine)
- proxyfeine 8-(3- (dimethylamino)propoxy)caffeine
- Proxyfeine (RU 2166948, 20.05.2001) is used in chemotherapy for cancer patients at high risk of brain metastases and the rehabilitation of the metastatic lesions to the brain, as well as the early stages of cancer metastasis prevention in Russia and other countries.
- PCT Patent application No. WO2008077557 discloses preparation of 8-ethynyl xanthine derivatives as selective A2A receptor antagonists and their use as medicines, for example, in the treatment of dopamine-related movement disorders,
- Ri and R 2 represent, e.g., hydrogen, Q ⁇ a-kyl, cycloalkyl, heterocycloalkyl, aryl (wherein these groups may be further substituted), etc.; R 3 represents e.g., aryl, hetaryl group.
- ethynylxanthine derivatives exhibit high antiproliferative activity against various tumor cell lines. Therefore, these substances may be therapeutically beneficial in the treatment of tumors.
- These substances may be administered in the form of a pharmaceutical composition, wherein they are present together with one or more pharmaceutically acceptable diluents, carriers, or excipients.
- R 1 represents hydrogen, C ⁇ alkyl, hydroxy-C 2 - 4 alkyl, Ci -3 alkoxy-C 2 - 4 alkyl, Ci. salkylcarbonyl-C ⁇ alkyl or C 1-3 alkyl(C 1 _3alkyl)amino-C 2-4 alkyl;
- R 2 represents C ⁇ alkyl, hydroxy-C 2 . 4 alkyl, C 1-4 alkylcarbonyl-Ci- 4 alkyl, C]. 3 alko y-C 2 - 4 alkyl, Ci -3 alkyl(C 1 _ 3 alkyl)amino-C 2 - 4 alkyl or halo-C 2 . 4 alkyl;
- R 3 represents Ci_ 4 alkyl, allyl or Ci- 3 alkoxy-C 2-4 alkyl; with the proviso that if substituent R 3 is at purine N(7) atom the dotted line between N(7) and C(8) represents no bond, and the dotted line between C(8) and N(9) represents chemical bond;
- R 3 represents Q ⁇ alkyl, hydroxy-C 1-4 alkyl, C i .. 3 alkoxy-C i _ 4 alkyl, amino-C
- heterocyclyl represents saturated 4-7 membered heterocycle containing one or two heteroatoms selected from oxygen, sulfur and nitrogen, wherein the heterocyclyl may be azetidinyl, pyrrolidinyl, piperidinyl, azepanyl, tetrahydrofuryl, morpholinyl, thiomorpholinyl and piperazinyl;
- aryl represents phenyl or phenyl substituted by one or more substituents selected independently from halogen, cyano, C 1 _ 4 alkoxycarbonyl, N-Q.
- the invention also relates to a manufacturing process of a compound selected from those of Formula I as defined above, comprising reaction of a compound of Formula II:
- R l , R 2 and R 3 are as defined for Formula I above, with a compound of Formula III:
- R 4 is as defined for Formula I above, optionally in the presence of base in an appropriate solvent (e.g., DIEA in DMF, NMP, DMAC or EtOAc), in the presence of Cul and palladium catalyst generated in situ (e.g., from PdCl 2 or Pd(OAc) 2 and PPh 3 ) or commercially available (Ph 3 P) 4 Pd to yield a compound of Formula I, which may be converted, if desired, into an optical isomer, polymorph, pharmaceutically-acceptable salt, hydrate or solvate.
- an appropriate solvent e.g., DIEA in DMF, NMP, DMAC or EtOAc
- Cul and palladium catalyst generated in situ e.g., from PdCl 2 or Pd(OAc) 2 and PPh 3
- Ph 3 P commercially available
- Ci. 4 alkyl represents straight or branched chain alkyl groups having 1, 2, 3 or 4 carbon atoms, examples of such alkyl groups include methyl, ethyl, n-propyl, 2-propyl, n-butyl, 2-butyl, iso-butyl and tert-butyl.
- cyclo-C 3-6 alkyl represents monocyclic alkyl groups having 3, 4, 5 or 6 carbon atoms, including cyclopropyl, cyclobutyl, cyclopentyl and cyclohexyl.
- heterocyclyl represents a saturated 4-7 membered heterocycle containing one or two heteroatoms selected from oxygen, sulfur and nitrogen
- heterocyclyl groups include azetidinyl, pyrrolidinyl, piperidinyl, azepanyl, tetrahydrofuryl, morpholinyl, thiomorpholinyl and piperazinyl.
- halo or halogen represents fluorine, chlorine, bromine and iodine.
- analogs and derivatives of the compounds of the invention can be created which have improved therapeutic efficacy, i.e., higher potency and/or selectivity at a specific targeted receptor type, greater ability to penetrate mammalian blood-brain barriers, fewer side effects, etc.
- the compounds of Formula I can be in the form of a pharmaceutically acceptable salt or a solvate.
- pharmaceutically acceptable refers here to the therapeutically active non-toxic salt forms, which the compounds of Formula I are able to form.
- the latter can conveniently be obtained by treating the base form with such appropriate acids as inorganic acids such as hydrochloric acid, hydrobromic acid; sulfuric acid; nitric acid; phosphoric acid and the like; or organic acids such as acetic, propanoic, hydroxyacetic, 2-hydroxypropanoic, oxopropanoic, oxalic, malonic, succinic, maleic, fumaric, malic, tartaric, methanesulfonic, benzenesulfonic, 4-methylbenzenesulfonic, 2-hydroxybenzoic, and like acids.
- the salt may be converted to the free base by treatment with alkali.
- Scheme 1 describes the preparation of compounds of Formula I of the present invention. All of the starting materials II are prepared by representative procedures described in Schemes 2 and 3, by procedures well known to one of ordinary skill in organic chemistry or can be obtained commercially. All of the final compounds of the present invention are prepared by procedures described in these charts or by procedures analogous thereto, which procedures would be well known to one of ordinary skill in organic chemistry. All of the variables used in the schemes are as defined below or as in the claims.
- Method C Pd(OAc) 2 , Ph 3 P, Cul, N-methylpyrrolidine/toluene (1:1), DIEA, 50 °C; Method D. Pd(PPh 3 ) 4 , PdCl 2 , Ph 3 P, Cul, ethyl acetate, DIEA, 40 °C.
- DMF is defined as ⁇ , ⁇ -dimethylformamide
- DMAC is defined as ⁇ , ⁇ -dimethylacetamide
- NMP is defined as N-methylpyrrolidone
- DMSO dimethyl sulfoxide
- HCl as hydrochloric acid
- NH 3 as aqueous ammonia solution
- MeCN acetonitrile
- EtOAc diisopropylethylamine
- rt room temperature
- Method D A vial charged with Pd(PPh 3 ) 4 (346 mg, 0.3 mmol), PdCl 2 (51 mg, 0.3 mmol), Ph 3 P (157 mg, 0.6 mmol), Cul (58 mg, 0.3 mmol), 8-bromo- 1,3,7- trimethyl-lH-purine-2,6(3H,7H)-dione (4.08 g, 15.0 mmol) and 2-methylbut-3-yn-2- ol (2.05 mL, 21.0 mmol), DIEA (5.0 mL) and ethyl acetate (70 mL) was stirred for 15 min at 40 °C with simultaneous barbotation with argon.
- Pd(PPh 3 ) 4 346 mg, 0.3 mmol
- PdCl 2 51 mg, 0.3 mmol
- Ph 3 P 157 mg, 0.6 mmol
- Cul 58 mg, 0.3 mmol
- reaction mixture was stirred for additional 2-4 h. After cooling to rt, the reaction mixture was filtered through a silica gel pad and washed with EtOAc (200 mL). Then solvent was evaporated under reduced pressure. The crude product was purified by flash chromatography on silica gel using mixture of water (containing 0.1% aq.
- MDA-MB-435s human melanoma
- H9C2 rat embrio cardiomyoblast
- MCF-7 human breast adenocarcinoma, estrogen-positive
- HepG2 human hepatocellular carcinoma
- SH-SY5Y human neuroblastoma
- C6 rat glioma
- U937 human histiocytic leukemia
- A549 human lung carcinoma
- Monolayer tumor cell line MDA-MB-435s (human melanoma), H9C2 (rat embrio cardiomyoblast), MCF-7 (human breast adenocarcinoma, estrogen-positive), HepG2 (human hepatocellular carcinoma), SH-SY5Y (human neuroblastoma), C6 (rat glioma), U937 (human histiocytic leukemia), and A549 (human lung carcinoma), and normal cell line NIH 3T3 (mouse fibroblasts) were cultured in standard medium DMEM (Dulbecco's modified Eagle's medium) containing 1% non-essential amino- acids, 2 niM glutamine and supplemented with 10% fetal bovine serum (FBS, Sigma) ("Sigma").
- DMEM Dulbecco's modified Eagle's medium
- FBS fetal bovine serum
- NIH 3T3 normal mouse fibroblasts, "ATCC” cell line according the basal toxicity test (INVITOX Protocol No 64, 1992) and non-toxic compounds were selected.
- NIH 3T3 cells/well were placed into 96-well plates for 24 h and then exposed to the test compound over a range of eight concentration (1- 1000 ⁇ g/mL) for 24 h. Upon that, the cells were incubated with the neutral red dye for 4 h and then OD was determined at 540 nm.
- LD50 value is the amount of the drug that is taken to kill 50% of the test animals
- the IC 5 o values were calculated using the program Graph Pad 5 Prism® 3.0.
- MDA-MB-435s human melanoma
- H9C2 rat embrio cardiomyoblast
- MCF-7 human breast adenocarcinoma, estrogen-positive
- HepG2 human hepatocellular carcinoma
- SH- SY5Y human neuroblastoma
- C6 rat glioma
- U937 human histiocytic leukemia
- A549 human lung carcinoma
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- Veterinary Medicine (AREA)
- Medicinal Chemistry (AREA)
- Public Health (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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GB1714548.3A GB2553684B (en) | 2015-03-27 | 2015-03-27 | Ethynylxanthines, preparation and use for cancer treatment |
PCT/LV2015/000001 WO2016159745A1 (en) | 2015-03-27 | 2015-03-27 | Ethynylxanthines, preparation and use for cancer treatment |
CA2989161A CA2989161C (en) | 2015-03-27 | 2015-03-27 | Ethynylxanthines, preparation and use for cancer treatment |
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PCT/LV2015/000001 WO2016159745A1 (en) | 2015-03-27 | 2015-03-27 | Ethynylxanthines, preparation and use for cancer treatment |
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GB (1) | GB2553684B (en) |
WO (1) | WO2016159745A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2166948C1 (en) | 2000-05-29 | 2001-05-20 | Центральный научно-исследовательский рентгенорадиологический институт | Method for treating gliomae aggravated with epileptic syndrome |
WO2008077557A1 (en) | 2006-12-22 | 2008-07-03 | Schwarz Pharma Ag | 8-ethinylxanthine derivatives as selective a2a receptor antagonists |
WO2009024542A2 (en) * | 2007-08-17 | 2009-02-26 | Boehringer Ingelheim International Gmbh | Purin derivatives for use in the treatment of fab-related diseases |
WO2011005871A1 (en) * | 2009-07-07 | 2011-01-13 | Pgxhealth, Llc | Substituted 8-[6-carbonylamine-3-pyridyl]xanthines as adenosine a2b antagonists |
WO2014143799A2 (en) | 2013-03-15 | 2014-09-18 | Hydra Biosciences, Inc. | Substituted xanthines and methods of use thereof |
-
2015
- 2015-03-27 WO PCT/LV2015/000001 patent/WO2016159745A1/en active Application Filing
- 2015-03-27 CA CA2989161A patent/CA2989161C/en active Active
- 2015-03-27 GB GB1714548.3A patent/GB2553684B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2166948C1 (en) | 2000-05-29 | 2001-05-20 | Центральный научно-исследовательский рентгенорадиологический институт | Method for treating gliomae aggravated with epileptic syndrome |
WO2008077557A1 (en) | 2006-12-22 | 2008-07-03 | Schwarz Pharma Ag | 8-ethinylxanthine derivatives as selective a2a receptor antagonists |
WO2009024542A2 (en) * | 2007-08-17 | 2009-02-26 | Boehringer Ingelheim International Gmbh | Purin derivatives for use in the treatment of fab-related diseases |
WO2011005871A1 (en) * | 2009-07-07 | 2011-01-13 | Pgxhealth, Llc | Substituted 8-[6-carbonylamine-3-pyridyl]xanthines as adenosine a2b antagonists |
WO2014143799A2 (en) | 2013-03-15 | 2014-09-18 | Hydra Biosciences, Inc. | Substituted xanthines and methods of use thereof |
Non-Patent Citations (14)
Title |
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ARSENYAN, TETRAHEDRON LETT., vol. 54, 2013, pages 6524 - 6528 |
DATABASE REGISTRY [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; 12 July 2006 (2006-07-12), XP002739192, Database accession no. 892164-23-7 * |
HAYASHI, ANTICANCER RES., vol. 25, 2005, pages 2399 - 2406 |
HEPATOLOGY, vol. 46, 2007, pages 430 - 435 |
HUSE, NAT. REV., vol. 10, 2010, pages 319 - 331 |
JERMAL, CA, CANCER J. CLIN., vol. 60, 2010, pages 277 - 300 |
JERMAL, CA, CANCER J. CLIN., vol. 61, 2011, pages 69 - 90 |
KANG, CANCER. RES., vol. 70, 2010, pages 1173 - 83 |
LAMPSON, DRUG DISCOV. TODAY, vol. 14, 2009, pages 185 - 191 |
MICHAUD, AM. J. CLIN. NUTR., vol. 92, 2010, pages 1145 - 50 |
SIEGAL, NEURO ONCOL., 2013 |
SIEGEL, CA, CANCER J. CLIN., vol. 62, 2012, pages 10 - 29 |
SYNLETT, vol. 23, 2012, pages 1191 - 1198 |
VARTANYAN, PSYCHOPHARM. BIOL. NARC., vol. 5, 2005, pages 1093 - 1095 |
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CA2989161A1 (en) | 2016-10-06 |
GB2553684A8 (en) | 2018-04-18 |
GB2553684B (en) | 2020-06-03 |
GB2553684A (en) | 2018-03-14 |
CA2989161C (en) | 2022-03-01 |
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