Patents by Inventor Panassaya Suppasansatorn

Panassaya Suppasansatorn 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).

  • Synthesis of temozolomide esters as potent anticancer pro-drugs for topical and transdermal applications in treatments of cancers
    Patent number: 7173021
    Abstract: This invention relates to the use of temozolomide esters (4-dihydro-3-methyl-4-oxoimidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxylate esters) Formula 1 as potent anticancer pro-drugs for treatment of cancers by topical and transdermal applications, and to a novel process for synthesis of temozolomide esters by a direct esterification of temozolomide acid (3,4-dihydro-3-methyl-4-oxoimidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxylic acid) with a halogeno-aliphatic compound in presence of a base, or with an alcohol in presence of a dehydrate agent
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: February 6, 2007
    Assignee: Tianjin North Pharm Sci-Tech Co., Ltd.
    Inventors: Yongfeng Wang, Barbara R. Conway, Panassaya Suppasansatorn
  • Synthesis of temozolomide esters as potent anticancer pro-drugs for topical and transdermal applications in treatments of cancers
    Publication number: 20060047117
    Abstract: This invention relates to the use of temozolomide esters (4-dihydro-3-methyl-4-oxoimidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxylate esters) Formula 1 as potent anticancer pro-drugs for treatment of cancers by topical and transdermal applications, and to a novel process for synthesis of temozolomide esters by a direct esterification of temozolomide acid (3,4-dihydro-3-methyl-4-oxoimidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxylic acid) with a halogeno-aliphatic compound in presence of a base, or with an alcohol in presence of a dehydrate agent.
    Type: Application
    Filed: March 7, 2005
    Publication date: March 2, 2006
    Inventors: Yongfeng Wang, Barbara Conway, Panassaya Suppasansatorn