Benzothiazine derivatives

US4595685A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Rainer Henning · Tokyo, JP
• Ulrich Lerch
• Joachim Kaiser · Frankfurt am Main, DE

Key dates

• Filing date: Dec 21, 1984
• Grant date: Jun 17, 1986
• Expiry date: Dec 21, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D417/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Benzothiazine derivatives of the formula I ##STR1## with (R(1), R(1)', R(1)", R(4) and R(4)' equal to hydrogen, alkyl, alkoxy, halogen, nitro, hydroxyl, acetamido or amino; R(2) equal to hydrogen, alkyl, alkenyl, phenyl; R(3) equal to hydrogen, alkyl, alkenyl, phenyl; R(5) equal to hydrogen or (C.sub.1 -C.sub.3)-alkyl; R(6) equal to one of the following groups, ##STR2## with R(7) and R(8) equal to hydrogen, alkyl, cycloalkyl, phenyl; R(9) equal to hydrogen, alkyl, phenyl, pyridyl, pyrimidinyl or benzoyl; R(10) equal to hydrogen, alkyl, phenyl; R(11) equal to hydrogen, hydroxyl, alkoxy or, together with R(12), a bond; and R(12) equal to hydrogen or, together with R(11), a bond; m equal to 1, 2, 3 or 4; n equal to 0 or 1; p equal to 0, 1, 2, 3 or 4, and X equal to oxygen or two hydrogen atoms, and salts of the compounds of the formula I with physiologically tolerated acids and a process for the preparation of compounds I, likewise a method of treatment of disturbances of the calcium balance of a human body are described.