At Least Three Ring Hetero Atoms In The Bicyclo Ring System Patents (Class 540/568)
  • PAF-antagonistic thienotriazolodiazepine compounds and pharmaceutical uses thereof
    Patent number: 4820703
    Abstract: A thienotriazolodiazepine compound of the formula: ##STR1## wherein A is alkylene or substituted alkylene and each other symbol is as defined in the specification and a pharmaceutically acceptable acid addition salt thereof, and pharmaceutical uses thereof.Said compounds exhibit PAF-antagonistic activity and are useful for the prevention or treatment of various PAF-induced diseases.
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: April 11, 1989
    Assignee: Yoshitomi Pharmaceutical Industries Ltd.
    Inventors: Tetsuya Tahara, Minoru Moriwaki, Masao Abe, Shuji Yuasa
  • 4-(2-fluoro-4-halo-5-substituted phenyl)urazols, and herbicidal use
    Patent number: 4622063
    Abstract: A condensed phenylurazol of the formula: ##STR1## wherein X is a chlorine atom or a bromine atom, Y and Z are each an oxygen atom or a sulfur atom and R is a C.sub.1 -C.sub.3 alkyl group, an allyl group or propargyl group and n is an integer of 4 or 5, which is useful as a herbicide.
    Type: Grant
    Filed: March 22, 1984
    Date of Patent: November 11, 1986
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Eiki Nagano, Shunichi Hashimoto, Ryo Yoshida, Hiroshi Matsumoto, Katsuzo Kamoshita