Pyridaziny or oxodihydropyridazinyl chroman derivatives

US5238937A · kind A · utility

Assignee

• Merck Patentgesellschaft · DE

Inventors

• Rolf Gericke · Seeheim-Jugenheim, DE
• Manfred Baumgarth
• Ingeborg Lues · Darmstadt, DE
• Jurgen Harting · Darmstadt, DE
• Rolf Bergmann

Key dates

• Filing date: Dec 4, 1991
• Grant date: Aug 24, 1993
• Expiry date: Dec 4, 2011

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61P15/00
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to novel chroman derivatives of the formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8 and R.sup.9 have the meanings given in [Patent claim 1], and which, like their salts, show effects on the cardiovascular system and can be used for the treatment or prophylaxis of cardiac insufficiency, angina pectoris, high blood pressure, incontinence and alopecia.