Patents by Inventor Sung J. Park

Sung J. Park 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).

  • 5-pyrrolyl-6-halogeno-2-pyridylmethylsulfinyl benzimidazole derivatives
    Patent number: 5554631
    Abstract: The present invention relates to a novel compound 5-pyrrolyl-6-halogeno-2-pyridylmethylsulfinylbenzimidazole derivative having the following formula (I): ##STR1## or a pharmaceutically acceptable salt thereof, in which X represents S, SO or SO.sub.2,Y represents halogen,R.sub.1 and R.sub.2 independently from each other represent hydrogen or methyl,R.sub.3 represents hydrogen, C.sub.1 -C.sub.8 alkyl, --SR.sub.6, --N(R.sub.7).sub.2, or a group of formula --OR.sub.6 or --O(CH.sub.2).sub.m --Z, whereinR.sub.6 represents C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.4 alkenyl, C.sub.3 -C.sub.10 cycloalkyl optionally substituted with C.sub.1 -C.sub.4 alkyl, C.sub.2 -C.sub.5 fluoroalkyl, phenyl optionally substituted with C.sub.1 -C.sub.4 alkyl or benzyl optionally substituted with C.sub.1 -C.sub.4 alkyl,R.sub.7 represents hydrogen or C.sub.1 -C.sub.5 alkyl,Z represents a group of formula --O(CH.sub.2).sub.q --R.sub.9 whereinq denotes an integer of 1 to 3, and R.sub.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: September 10, 1996
    Assignee: Il-Yang Pharm. Co., Ltd.
    Inventors: Su U. Kim, Dong Y. Kim, Gi J. Chung, Sung K. Hong, Sung J. Park, Sang H. Nam, Seung M. Lee