The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 23, 1990
Filed:
Mar. 16, 1989
Fumihiko Kanoo, Takasago, JP;
Takehiko Yamane, Akashi, JP;
Hideo Kondo, Takasago, JP;
Takuji Hashizume, Takasago, JP;
Katsuji Yamashita, Kobe, JP;
Kazunori Hosoe, Takasago, JP;
Fumiyuki Kuze, Kyoto, JP;
Kiyoshi Watanabe, Akashi, JP;
Kanegafuchi Kagaku Kogyo Kabushiki Kaisha, Osaka, JP;
Abstract
A rifamycin derivative having the formula (I): ##STR1## wherein R.sup.1 is hydrogen atom, methyl group or ethyl group, R.sup.2 is an alkyl group having 1 to 4 carbon atoms, and A is a group having the formula: ##STR2## in which n is an integer of 3 to 5, or group having the formula: ##STR3## in which R.sup.3 is a alkyl group having 1 to 5 carbon atoms; or a salt thereof. The rifamycin derivative (I) exhibits a strong antibacterial activity against Gram-positive bacteria and acid-fast bacteria, and also exhibits a strong antibacterial activity against tubercle bacilli.