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. 20, 1976
Filed:
Jul. 30, 1974
Michihiro Yamamoto, Nishinomiya, JA;
Shigeaki Morooka, Nishinomiya, JA;
Masao Koshiba, Amagasaki, JA;
Shigeho Inaba, Takarazuka, JA;
Hisao Yamamoto, Nishinomiya, JA;
Sumitomo Chemical Company, Limited, Osaka, JA;
Abstract
Quinazolinone derivatives of the formula, ##SPC1## Wherein R is a polyalicyclic hydrocarbon group; R.sup.1 and R.sup.2 are independently a hydrogen atom, a nitro group, a trifluoromethyl group or a methylsulfonyl group; R.sup.3 is a phenyl group, a substituted phenyl group, a pyridyl group or a thienyl group; and n is 0 or an integer of 1 to 3, have potent antiviral activity with low toxicities. These compounds can be prepared using a variety of processes analogous to known methods, for example, by oxidizing a 3,4-dihydro-2(1H)-quinazolinone having a polyalicyclic hydrocarbon group bonded through an alkylene group at the 1 position.