Patents by Inventor Anthony G. Barrett

Anthony G. Barrett has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240101503
    Abstract: The present invention relates to a process for the preparation of diverse known and novel cannabinoids 5, which include cannabigerol (CBG, 1), cannabigerolic acid (CBGA, 2), cannabigerovarin (CBGV, 3), cannabigerovarinic acid (CBGVA, 4) and other naturally occurring monocyclic cannabinoids and other analogues from simple inexpensive starting materials using a cascade sequence of allylic rearrangement and aromatization. Novel cannabinoids of series 5 are also claimed as part of the invention. These synthesized cannabinoids, unlike the minor cannabinoids isolated from Cannabis saliva or synthesized from the condensation reactions such as the reactions of substituted resorcinols with monoterpenes, are much easier to obtain at high purity levels. In particular, these cannabinoids, including but not limited to cannabigerol (CBG, 1), cannabigerolic acid (CBGA, 2), cannabigerovarin (CBGV, 3) and cannabigerovarinic acid (CBGVA, 4) are obtained without contamination with impurities with variation in RA and RB (e.g.
    Type: Application
    Filed: October 7, 2020
    Publication date: March 28, 2024
    Inventors: Barry A. Berkowitz, Anthony G. Barrett, Daniel Elliott
  • Publication number: 20230373942
    Abstract: A process for the preparation of diverse known and novel cannabinoids (5), which include cannabinol (CBN, 1), cannabinolic acid (CBNA, 2), cannabivarin (CBV, 3) and cannabivarinic acid (CBVA, 4) and other naturally occurring monocyclic and tricyclic cannabinoids and other analogues from simple inexpensive starting materials using a cascade sequence of allylic rearrangement, aromatization and, as appropriate, further highly selective cyclization reactions. Additionally, cannabinoids of the formula (5) and intermediates of the formula (9) form part of the invention. Use of medicaments comprising one or more of the disclosed cannabinoids alone or admixed with one or more other cannabinoids is also disclosed.
    Type: Application
    Filed: September 30, 2021
    Publication date: November 23, 2023
    Inventors: Barry A. Berkowitz, Anthony G. Barrett, Daniel Elliott, Philip J. Parsons
  • Patent number: 11685724
    Abstract: The present invention relates to intermediate compounds for the synthesis of novel cannabinoids 1 and 2, synthesized from simple starting materials using a cascade sequence of allylic rearrangement, aromatization and, for tetracyclic cannabinoids, further highly stereoselective and regioselective cyclization. These synthesized cannabinoids can more easily be obtained at high purity levels than cannabinoids isolated or synthesized via known methods. The cannabinoids 2 are obtained containing very low levels of isomeric cannabinoids such as the undesirable ?8-tetrahydrocannabinol. The analogues with variation in aromatic ring substituents, whilst easily synthesized with the new methodology, would be much more difficult to make from any of the components of cannabis oil. Novel compounds of the formulas 3 and 6, useful as intermediates for the synthesis of the cannabinoids of advanced intermediates 4 and 5 as well as cannabinoids of the formulas 1 and 2, are disclosed.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: June 27, 2023
    Assignee: Bessor Pharma, LLC
    Inventors: Barry A. Berkowitz, Anthony G. Barrett, Daniel Elliott
  • Publication number: 20220340537
    Abstract: The present invention relates to intermediate compounds for the synthesis of novel cannabinoids 1 and 2, synthesized from simple starting materials using a cascade sequence of allylic rearrangement, aromatization and, for tetracyclic cannabinoids, further highly stereoselective and regioselective cyclization. These synthesized cannabinoids can more easily be obtained at high purity levels than cannabinoids isolated or synthesized via known methods. The cannabinoids 2 are obtained containing very low levels of isomeric cannabinoids such as the undesirable ?8-tetrahydrocannabinol. The analogues with variation in aromatic ring substituents, whilst easily synthesized with the new methodology, would be much more difficult to make from any of the components of cannabis oil. Novel compounds of the formulas 3 and 6, useful as intermediates for the synthesis of the cannabinoids of advanced intermediates 4 and 5 as well as cannabinoids of the formulas 1 and 2, are disclosed.
    Type: Application
    Filed: May 6, 2022
    Publication date: October 27, 2022
    Inventors: Barry A. Berkowitz, Anthony G. Barrett, Daniel Elliott
  • Patent number: 11407724
    Abstract: A process for the preparation of substantially pure diverse known and novel cannabinoids 1 and 2, which include ?9-tetrahydrocannabinol (7), tetrahydrocannabivarin (9), cannabidiol (11), cannabidivarin (12) and other naturally occurring tetracyclic and tricyclic cannabinoids and other synthetic tetracyclic and tricyclic analogues, via intermediates 3, 6, 4 and 5, using a cascade sequence of allylic rearrangement, aromatization and, for the tetracyclic cannabinoids, further highly stereoselective and regioselective cyclization. These synthesized cannabinoids can more easily be obtained at high purity levels than cannabinoids isolated or synthesized via known methods. The cannabinoids 2, including ?9-tetrahydrocannabinol (7), tetrahydrocannabivarin (9), are obtained containing very low levels of isomeric cannabinoids such as the undesirable ?8-tetrahydrocannabinol.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: August 9, 2022
    Assignee: Bessor Pharma, LLC
    Inventors: Barry A. Berkowitz, Anthony G. Barrett, Daniel Elliott
  • Patent number: 11370768
    Abstract: The present invention relates to novel cannabinoids 1 and 2, synthesized from simple starting materials using a cascade sequence of allylic rearrangement, aromatization and, for tetracyclic cannabinoids, further highly stereoselective and regioselective cyclization. These synthesized cannabinoids can more easily be obtained at high purity levels than cannabinoids isolated or synthesized via known methods. The cannabinoids 2 are obtained containing very low levels of isomeric cannabinoids such as the undesirable ?8-tetrahydrocannabinol. The analogues with variation in aromatic ring substituents, whilst easily synthesized with the new methodology, would be much more difficult to make from any of the components of cannabis oil. Novel compounds of the formulas 3, 4, 5 and 6, as intermediates for the synthesis of the cannabinoids of the formulas 1 and 2 are also disclosed.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: June 28, 2022
    Assignee: Bessor Pharma, LLC
    Inventors: Barry A. Berkowitz, Anthony G. Barrett, Daniel Elliott
  • Publication number: 20210238157
    Abstract: The present invention relates to novel cannabinoids 1 and 2, synthesized from simple starting materials using a cascade sequence of allylic rearrangement, aromatization and, for tetracyclic cannabinoids, further highly stereoselective and regioselective cyclization. These synthesized cannabinoids can more easily be obtained at high purity levels than cannabinoids isolated or synthesized via known methods. The cannabinoids 2 are obtained containing very low levels of isomeric cannabinoids such as the undesirable ?8-tetrahydrocannabinol. The analogues with variation in aromatic ring substituents, whilst easily synthesized with the new methodology, would be much more difficult to make from any of the components of cannabis oil. Novel compounds of the formulas 3, 4, 5 and 6, as intermediates for the synthesis of the cannabinoids of the formulas 1 and 2 are also disclosed.
    Type: Application
    Filed: August 20, 2019
    Publication date: August 5, 2021
    Inventors: Barry A. Berkowitz, Anthony G. Barrett, Daniel Elliott
  • Publication number: 20210236460
    Abstract: The use of a medicament as a single agent, binary agent, or other combination comprising of substantially pure novel cannabinoids 1 and 2, optionally admixed with one or more known and novel cannabinoids and other known naturally occurring and synthetic tetracyclic 2A and tricyclic 1A cannabinoids for the prevention, treatment or cure of inflammatory mediated diseases or inflammatory mediated pathological conditions, anorexia, arthritis, cancer, pain, glaucoma, migraine, persistent muscle spasms, seizures (epileptic seizures), severe nausea, PTSD, autism spectrum disorder, drug abuse, insomnia, or any other chronic or persistent medical symptom.
    Type: Application
    Filed: August 20, 2019
    Publication date: August 5, 2021
    Inventors: Barry A. Berkowitz, Anthony G. Barrett, Daniel Elliott
  • Publication number: 20210198224
    Abstract: A process for the preparation of substantially pure diverse known and novel cannabinoids 1 and 2, which include ?9-tetrahydrocannabinol (7), tetrahydrocannabivarin (9), cannabidiol (11), cannabidivarin (12) and other naturally occurring tetracyclic and tricyclic cannabinoids and other synthetic tetracyclic and tricyclic analogues, via intermediates 3, 6, 4 and 5, using a cascade sequence of allylic rearrangement, aromatization and, for the tetracyclic cannabinoids, further highly stereoselective and regioselective cyclization. These synthesized cannabinoids can more easily be obtained at high purity levels than cannabinoids isolated or synthesized via known methods. The cannabinoids 2, including ?9-tetrahydrocannabinol (7), tetrahydrocannabivarin (9), are obtained containing very low levels of isomeric cannabinoids such as the undesirable ?8-tetrahydrocannabinol.
    Type: Application
    Filed: August 20, 2019
    Publication date: July 1, 2021
    Inventors: Barry A. Berkowitz, Anthony G. Barrett, Daniel Elliott