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:
Apr. 10, 1984
Filed:
Jul. 29, 1981
Boehringer Mannheim GmbH, Mannheim, DE;
Abstract
The present invention provides indole derivatives of the general formula: ##STR1## wherein R.sub.1 is a hydrogen atom, an aralkyl radical or a radical of the general formula: ##STR2## in which B is a reactive group or, together with R.sub.5, represents a valency bond, and R.sub.5 is a hydrogen atom or an aliphatic or aromatic acyl radical, R.sub.2 is a hydrogen atom or a lower alkyl radical, R.sub.3 is a hydrogen atom, a methyl radical or a --CH.sub.2 --O--R.sub.5 radical, R.sub.5 having the same meaning as above, and R.sub.4 is an aminocarbonyl, cyano, oximinomethyl, formyl, hydroxymethyl or lower alkoxycarbimidoyl radical, with the proviso that R.sub.1 is not an aralkyl radical when R.sub.4 is a formyl radical. The present invention also provides processes for the preparation of these compounds. Furthermore, the present invention is concerned with the use of these compounds for the preparation of compounds with a heart and circulatory activity.