Patents Assigned to Hideji Itokawa
  • Cyclic hexapeptide compounds
    Patent number: 5922838
    Abstract: Object: To provide a cyclic hexapeptide compound having a distinguished pharmaceutical effect.Constitution: A cyclic hexapeptide compound represented by the following formula: ##STR1## where R is a group represented by the following formula: ##STR2## (where R.sup.1 and R.sup.2 are each an alkyl group, a phenyl group or a benzyl group) or a group represented by the following formula: ##STR3## (where n is an integer of 4 to 6), or its salts.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: July 13, 1999
    Assignees: Taisho Pharmaceutical Co., Ltd., Hideji Itokawa
    Inventors: Hideji Itokawa, Yukio Hitotsuyanagi, Takehiro Yamagishi