Patents by Inventor Yasuko Ichigobara

Yasuko Ichigobara 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).

  • Pyrimidine compound and anti-rotavirus composition
    Patent number: 6080750
    Abstract: A pyrimidine compound of the formula [I] ##STR1## wherein R1 is H, C.sub.1 -C.sub.4 lower alkyl, halogen atom, --OH, C.sub.1 -C.sub.4 lower alkoxy, C.sub.1 -C.sub.6 hydroxy(lower)alkoxy or --NH.sub.2 ; R2 is H, --NH.sub.2 or --NHCOCH.sub.3 ; R3 is --NR5(CH.sub.2)i--CH.sub.2 OH; R4 is H, halogen atom, --NH.sub.2, --CN, --CHO, --CH.sub.2 OH, --COOH, --CH.sub.2 NH.sub.2, --CONH.sub.2 or --CH.dbd.N--A wherein A is --OH, C.sub.1 -C.sub.4 lower alkyl or C.sub.1 -C.sub.4 lower alkoxy; R5 is H or C.sub.1 -C.sub.4 lower alkyl; and i is an integer of 1 to 4, and an anti-rotavirus agent comprising, as an active ingredient, a compound of the formula [I] wherein R3 is a group selected from the following: ##STR2## The novel pyrimidine compound of the present invention and related derivatives thereof have superior anti-rotavirus action and are useful for the prophylaxis and treatment of rotaviral diseases.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: June 27, 2000
    Assignee: Nippon Shoji Kaisha Ltd.
    Inventors: Masakatsu Hisaki, Yoichiro Ohta, Kenji Kawanishi, Yasuko Ichigobara, Fuzuki Iwakura, Masanobu Azuma, Tatsuo Suzutani, Manabu Node, Kiyoharu Nishide