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:
Jul. 16, 1985
Filed:
Jun. 06, 1983
Ronald G Micetich, Sherwood Park, CA;
Shigeru Yamabe, Kobe, JP;
Tomio Yamazaki, Tokushima, JP;
Naobumi Ishida, Tokushima, JP;
Takeshi Ishizawa, Naruto, JP;
Taiho Pharmaceutical Company, Limited, Tokyo, JP;
Abstract
A penicillin derivative represented by the following formula ##STR1## wherein R.sub.1 and R.sub.2 are each the same or different and represent hydrogen, C.sub.1-18 alkyl, mononitro-substituted benzyl or group for forming a pharmaceutically acceptable salt and R.sub.3 is selected from the group consisting of hydrogen, C.sub.1-6 alkyl, C.sub.2-7 alkoxymethyl, C.sub.3-8 alkylcarbonyloxymethyl, C.sub.4-9 alkylcarbonyloxyethyl, (C.sub.5-7 cycloalkyl)carbonyloxymethyl, C.sub.9-14 benzylcarbonyloxyalkyl, C.sub.3-8 alkoxycarbonylmethyl, C.sub.4-9 alkoxycarbonylethyl, phthalidyl, crotonolacton-4-yl, .gamma.-butyrolacton-4-yl, halogenated C.sub.1-6 alkyl substituted with 1 to 3 halogen atoms, C.sub.1-6 alkoxy- or nitro-substituted or unsubstituted benzyl, benzhydryl, tetrahydropyranyl, dimethylaminoethyl, dimethylchlorosilyl, trichlorosilyl, (5-substituted C.sub.1-6 alkyl or phenyl or unsubstituted-2-oxo-1,3-dioxoden-4-yl)methyl, C.sub.8-13 benzoyloxyalkyl and group for forming a pharmaceutically acceptable salt.