Patents by Inventor Yuanzhu Gai

Yuanzhu Gai 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).

  • Inhibitors of a 9-cis epoxycarotenoid dioxygenase
    Patent number: 8283481
    Abstract: A compound of formula (I): wherein: R1 is —SR10, —O—C(O)—R11, —NR12R13, where R10 is a C1-8-alkyl group or a phenyl group unsubstituted or substituted by a C1-4-alkyl group, R11 is a thiophenenyl, furanyl or pyrrolyl group, R12 is H or a C1-4-alkyl group and R13 is a C1-8-alkyl group or a phenyl group unsubstituted or substituted by a C1-4-alkyl group; R2 is H or a C1-4-alkyl group; R3 and R4 are independently H or C1-4-alkyl groups; R5 and R6 are independently H, OH or OR14, or taken together are ?O, where R14 is a protecting group; R7 is H or a C1-4-alkyl group; and, R8 is H, R9 is OH and R15 is H, or R15 is H and R8 and R9 taken together are —O—, or R9 is OH and R8 and R15 taken together form a bond; and, R18 and R19 are both H, or R18 and R19 taken together form a bond, or a plant physiologically acceptable salt thereof is useful for inhibiting 9-cis-epoxycarotenoid dioxygenase (NCED) in a plant or seed and is therefore useful for regulating ABA biosynthesis in the plant or seed.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: October 9, 2012
    Assignee: National Research Council of Canada
    Inventors: Suzanne R. Abrams, Michele C. Loewen, Jason Boyd, Adrian John Cutler, Yuanzhu Gai, Kenneth M. Nelson
  • Inhibitors of a 9-cis epoxycarotenoid dioxygenase
    Publication number: 20100160166
    Abstract: A compound of formula (I): wherein: R1 is —SR10, —O—C(O)—R11, —NR12R13, where R10 is a C1-8-alkyl group or a phenyl group unsubstituted or substituted by a C1-4-alkyl group, R11 is a thiophenenyl, furanyl or pyrrolyl group, R12 is H or a C1-4-alkyl group and R13 is a C1-8-alkyl group or a phenyl group unsubstituted or substituted by a C1-4-alkyl group; R2 is H or a C1-4-alkyl group; R3 and R4 are independently H or C1-4-alkyl groups; R5 and R6 are independently H, OH or OR14, or taken together are ?O, where R14 is a protecting group; R7 is H or a C1-4-alkyl group; and, R8 is H, R9 is OH and R15 is H, or R15 is H and R8 and R9 taken together are —O—, or R9 is OH and R8 and R15 taken together form a bond; and, R18 and R19 are both H, or R18 and R19 taken together form a bond, or a plant physiologically acceptable salt thereof is useful for inhibiting 9-cis-epoxycarotenoid dioxygenase (NCED) in a plant or seed and is therefore useful for regulating ABA biosynthesis in the plant or seed.
    Type: Application
    Filed: July 22, 2009
    Publication date: June 24, 2010
    Inventors: Suzanne R. Abrams, Michele C. Loewen, Jason Boyd, Adrian John Cutler, Yuanzhu Gai, Kenneth M. Nelson