- Stereoselective Synthesis of Nonpsychotic Natural Cannabidiol and Its Unnatural/Terpenyl/Tail-Modified Analogues
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Here, we report a three-step concise and stereoselective synthesis route to one of the most important phytocannabinoids, namely, (-)-cannabidiol (-CBD), from inexpensive and readily available starting material R-(+)-limonene. The synthesis involved the diastereoselective bifunctionalization of limonene, followed by effective elimination leading to the generation of key chiral p-mentha-2,8-dien-1-ol. The chiral p-mentha-2,8-dien-1-ol on coupling with olivetol under silver catalysis provided regiospecific (-)-CBD, contrary to reported ones which gave a mixture. The newly developed approach was further extended to its structural analogues cannabidiorcin and other tail/terpenyl-modified analogues. Moreover, its opposite isomer (+)-cannabidiol was also successfully synthesized from S-(-)-limonene.
- Anand, Radhika,Cham, Pankaj Singh,Gannedi, Veeranjaneyulu,Sharma, Sumit,Kumar, Mukesh,Singh, Rohit,Vishwakarma, Ram A.,Singh, Parvinder Pal
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p. 4489 - 4498
(2022/04/07)
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- PROCESS FOR THE SYNTHESIS OF CANNABIDIOL AND INTERMEDIATES THEREOF
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The present invention relates to process for the preparation of cannabidiol (A) from the coupling of (D) and (E) through the intermediates (C) and (D) starting from compound (B). The invention further relates to the novel compounds (B), (C), (D) and (E) and reagents used in this process. More specifically, this invention provides the manufacturing of Cannabidiol (A) in milligram to gram or kilogram scale.
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- Using (+)-carvone to access novel derivatives of (+)-ent-cannabidiol: The first asymmetric syntheses of (+)-ent-CBDP and (+)-ent-CBDV
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(?)-Cannabidiol [(?)-CBD] has recently gained prominence as a treatment for neuro-inflammation and other neurodegenerative disorders; interest is also developing in its synthetic enantiomer, (+)-CBD, which has a higher affinity to CB1/CB2 receptors than the natural stereoisomer. We have developed an inexpensive, stereoselective route to access ent-CBD derivatives using (+)-carvone as a starting material. In addition to (+)-CBD, we report the first syntheses of (+)-cannabidivarin, (+)-cannabidiphorol as well as C-6/C-8 homologues.
- Golliher, Alexandra E.,Tenorio, Antonio J.,Dimauro, Nina O.,Mairata, Nicolas R.,Holguin, F. Omar,Maio, William
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supporting information
(2021/02/20)
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- (+)-trans-Cannabidiol-2-hydroxy pentyl is a dual CB1R antagonist/CB2R agonist that prevents diabetic nephropathy in mice
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Natural cannabidiol ((-)-CBD) and its derivatives have increased interest for medicinal applications due to their broad biological activity spectrum, including targeting of the cannabinoid receptors type 1 (CB1R) and type 2 (CB2R). Herein, we synthesized the (+)-enantiomer of CBD and its derivative (+)-CBD hydroxypentylester ((+)-CBD-HPE) that showed enhanced CB1R and CB2R binding and functional activities compared to their respective (-) enantiomers. (+)-CBD-HPE Ki values for CB1R and CB2R were 3.1 ± 1.1 and 0.8 ± 0.1 nM respectively acting as CB1R antagonist and CB2R agonist. We further tested the capacity of (+)-CBD-HPE to prevent hyperglycemia and its complications in a mouse model. (+)-CBD-HPE significantly reduced streptozotocin (STZ)-induced hyperglycemia and glucose intolerance by preserving pancreatic beta cell mass. (+)-CBD-HPE significantly reduced activation of NF-κB by phosphorylation by 15% compared to STZ-vehicle mice, and CD3+ T cell infiltration into the islets was avoided. Consequently, (+)-CBD-HPE prevented STZ-induced apoptosis in islets. STZ induced inflammation and kidney damage, visualized by a significant increase in plasma proinflammatory cytokines, creatinine, and BUN. Treatment with (+)-CBD-HPE significantly reduced 2.5-fold plasma IFN-γ and increased 3-fold IL-5 levels compared to STZ-treated mice, without altering IL-18. (+)-CBD-HPE also significantly reduced creatinine and BUN levels to those comparable to healthy controls. At the macroscopy level, (+)-CBD-HPE prevented STZ-induced lesions in the kidney and voided renal fibrosis and CD3+ T cell infiltration. Thus, (+)-enantiomers of CBD, particularly (+)-CBD-HPE, have a promising potential due to their pharmacological profile and synthesis, potentially to be used for metabolic and immune-related disorders.
- González-Mariscal, Isabel,Carmona-Hidalgo, Beatriz,Winkler, Matthias,Unciti-Broceta, Juan D.,Escamilla, Alejandro,Gómez-Ca?as, María,Fernández-Ruiz, Javier,Fiebich, Bernd L.,Romero-Zerbo, Silvana-Yanina,Bermúdez-Silva, Francisco J.,Collado, Juan A.,Mu?oz, Eduardo
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- (+)-TRANS TETRAHYDROCANNABINOL ((+)-TRANS-THC) FOR USE AS A MEDICAMENT
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The present invention relates to a tetrahydrocannabinol (THC) type cannabinoid compound for use as a medicament. The THC-type cannabinoid is an enantiomer of the (-)-trans- tetrahydrocannabinol which is a naturally occurring cannabinoid that can be found in cannabis plant strains which have been bred to yield THC as the dominant cannabinoid. The particular enantiomer (+)-trans tetrahydrocannabinol has been found to have properties which are different from the naturally occurring (-)-trans-THC. The cannabinoid (+)-trans-THC has been found to occur in low concentrations in particular cannabis plant strains. Furthermore, the cannabinoid can be produced by synthetic means.
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- CATALYTIC CANNABINOID PROCESSES AND PRECURSORS
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The present disclosure relates to new cannabinoid sulfonate esters and processes for their use to prepare cannabinoids. The disclosure also relates to the use of catalysts and catalytic processes for the preparation of cannabinoids from the cannabinoid sulfonate esters.
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Page/Page column 31-32; 48
(2020/12/07)
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- SYNTHESIS OF (+)-CANNABINOIDS AND THEIR THERAPEUTIC EFFECTS
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The present invention relates to a method of producing a compound of formula (I) or a salt of a compound of formula (I). The invention also relates to a compound of formula (I) or a salt of a compound of formula (I) for use in a therapeutic method to achieve one or more therapeutic effects as well as for use in the treatment and/or prevention of certain diseases. Furthermore, the invention provides a pharmaceutical composition comprising one or more compound(s) of formula (I) or salt(s) of compound(s) of formula (I).
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- Monocyclic Quinone Structure-Activity Patterns: Synthesis of Catalytic Inhibitors of Topoisomerase II with Potent Antiproliferative Activity
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The monocyclic 1,4-benzoquinone, HU-331, the direct oxidation product of cannabidiol, inhibits the catalytic activity of topoisomerase II but without inducing DNA strand breaks or generating free radicals, and unlike many fused-ring quinones exhibits minimal cardiotoxicity. Thus, monocyclic quinones have potential as anticancer agents, and investigation of the structural origins of their biological activity is warranted. New syntheses of cannabidiol and (±)-HU-331 are here reported. Integrated synthetic protocols afforded a wide range of polysubstituted resorcinol derivatives; many of the corresponding novel 2-hydroxy-1,4-benzoquinone derivatives are potent inhibitors of the catalytic activity of topoisomerase II, some more so than HU-331, whose monoterpene unit replaced by a 3-cycloalkyl unit conferred increased antiproliferative properties in cell lines with IC50 values extending below 1 mM, and greater stability in solution than HU-331. The principal pharmacophore of quinones related to HU-331 was identified. Selected monocyclic quinones show potential for the development of new anticancer agents.
- Waugh, Thomas M.,Masters, John,Aliev, Abil E.,Marson, Charles M.
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supporting information
p. 114 - 124
(2019/12/11)
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- PROCESS FOR THE PRODUCTION OF CANNABIDIOL AND DELTA-9-TETRAHYDROCANNABINOL
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The present disclosure relates to the preparation of a cannabidiol compound or a derivative thereof. The cannabidiol compound or derivatives thereof can be prepared by an acid-catalyzed reaction of a suitably selected and substituted di-halo-olivetol or derivative thereof with a suitably selected and substituted cyclic alkene to produce a dihalo-cannabidiol compound or derivative thereof. The dihalo-cannabidiol compound or derivative thereof can be produced in high yield, high stereospecificity, or both. It can then be converted under reducing conditions to a cannabidiol compound or derivatives thereof.
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Paragraph 0299; 0300
(2017/01/31)
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- Process for production of delta-9- tetrahydrocannabinol
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The present invention relates to a process for preparation of a delta-9-tetrahydrocannabinol compound or derivative thereof involving treating a first intermediate compound with an organoaluminum-based Lewis acid catalyst, under conditions effective to produce the delta-9-tetrahydrocannabinol compound or derivative thereof. Another aspect of the present invention relates to a process for preparation of a cannabidiol or cannabidiolate compound involving reacting a first starting compound with a second starting compound in the presence of a metal triflate catalyst, under conditions effective to form the cannabidiol or cannabidiolate compound. The present invention also relates to a compound of the formula: where R8, R9, and R10 are the same or different and independently selected from the group consisting of H, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, or halo, with R1, R2, and R3 defined herein.
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- CANNABINOID ACTIVE PHARMACEUTICAL INGREDIENT FOR IMPROVED DOSAGE FORMS
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Pharmaceutical compositions comprising the cannabinoid active pharmaceutical ingredient, crystalline trans-(±)-Δ9-tetrahydrocannabinol, and formulations thereof are disclosed. The invention also relates to methods for treating or preventing a condition such as pain comprising administering to a patient in need thereof an effective amount of crystalline trans-(±)-Δ9-tetrahydrocannabinol. In specific embodiments, the crystalline trans-(±)-Δ9-tetrahydrocannabinol administered according to the methods for treating or preventing a condition such as pain can have a purity of at least about 98% based on the total weight of cannabinoids.
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Page/Page column 83
(2010/11/25)
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- METHODS FOR PURIFYING TRANS-(-)-Δ9-TETRAHYDROCANNABINOL AND TRANS-(+)-Δ9-TETRAHYDROCANNABINOL
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Methods for making trans-(-)-Δ9-tetrahydrocannabinoI and trans-(+)-Δ9-tetrahydrocannabinol are disclosed herein. In one embodiment, a trans-(-)-Δ9-tetrahydrocannabinoI composition is prepared by allowing a composition comprising (±)-Δ9-tetrahydrocannabinol to separate on a chiral stationary phase to provide a trans-(-)-Δ9-tetrahydrocannabinoI composition comprising at least about 99% by weight of trans-(-)-Δ9-tetrahydrocannabinol based on the total amount of trans-(-)-Δ9-tetrahydrocannabinol and trans-(+)-Δ9-tetrahydrocannabinol. The invention also relates to methods for treating or preventing a condition such as pain comprising administering to a patient in need thereof an effective amount of a trans-(-)-Δ9-tetrahydrocannabinoI having a purity of at least about 98% based on the total weight of cannabinoids.
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Page/Page column 42-43
(2008/06/13)
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- Enantiomeric cannabidiol derivatives: Synthesis and binding to cannabinoid receptors
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(-)-Cannabidiol (CBD) is a major, non psychotropic constituent of cannabis. It has been shown to cause numerous physiological effects of therapeutic importance. We have reported that CBD derivatives in both enantiomeric series are of pharmaceutical interest. Here we describe the syntheses of the major CBD metabolites, (-)-7-hydroxy-CBD and (-)-CBD-7-oic acid and their dimethylheptyl (DMH) homologs, as well as of the corresponding compounds in the enantiomeric (+)-CBD series. The starting materials were the respective CBD enantiomers and their DMH homologs. The binding of these compounds to the CB1 and CB2 cannabinoid receptors are compared. Surprisingly, contrary to the compounds in the (-) series, which do not bind to the receptors, most of the derivatives in the (+) series bind to the CB1 receptor in the low nanomole range. Some of these compounds also bind weakly to the CB2 receptor. The Royal Society of Chemistry 2005.
- Hanus, Lumir O.,Tchilibon, Susanna,Ponde, Datta E.,Breuer, Aviva,Fride, Ester,Mechoulam, Raphael
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p. 1116 - 1123
(2007/10/03)
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- BORON TRIFLUORIDE ETHERATE ON ALUMINA - A MODIFIED LEWIS ACID REAGENT. AN IMPROVED SYNTHESIS OF CANNABIDIOL.
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Boron trifluoride etherate on alumina catalyses the condensation of resorcinols and monomethyl resorcinols with several monoterpenoid allylic alcohols: in contrast to paralell reactions with boron trifluoride etherate in solution the products obtained do not undergo further cyclisations.
- Baek, Seung-Hwa,Srebnik, Morris,Mechoulam, Raphael
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p. 1083 - 1086
(2007/10/02)
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