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:
Nov. 20, 1979
Filed:
Oct. 06, 1972
Takeda Chemical Industries, Ltd., Osaka, JP;
Abstract
The present invention relates to pyrimidobenzodiazepine derivatives of the formula (I) and 2-(N-acetoacetal)aminobenzodiazepine derivatives of the formula (II), which compounds have the following formulas: ##STR1## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group, R.sup.2 represents a hydrogen atom, a lower alkyl group or an aryl group, and rings A and/or B are unsubstituted or substituted by one or more of a halogen, nitro, trifluoromethyl, lower alkyl or lower alkoxy group; including the cases wherein the nitrogen atom at the 6-position of the compound (I) or the 4-position of the compound (II) may be in the form of N-oxide and wherein compound (I) may be in the form of a pharmaceutically acceptable acid addition salt thereof. The present invention also relates to a method of producing these compounds. The compounds (I) and (II) are useful as muscle relaxants, anticonvulsants, sedatives, tranquilizers, etc.