| abstract |
The invention is used in therapy and relates to a compound of the general formula wherein R 1 represents an alkyl group, V represents a hydrogen atom, a straight or branched chain alkyl group, a cycloalkyl group, a cycloalkylmethyl group, a phenylalkyl group which is optionally substituted in a phenyl group, a carboxymethyl group, an alkoxycarbonylmethyl group or a carbamoylmethyl group which is optionally substituted on nitrogen, W represents a carboxymethyl group, an alkoxycarbonylmethyl group, a carbamoylmethyl group which in a given is optionally substituted on a nitrogen, a 4- to 7-membered ring group, optionally containing an oxygen or sulfur atom, a pyridylmethyl group, a 1-methylpyrrolylmethyl group, a furanylmethyl group, a thienylmethyl group or a 1,3-thiazolylmethyl group, or alternatively V and W form together with the nitrogen atom to which they are attached, a pyrrolidinyl, piperidyl or 1,2,3,4-tetrahydroisoquinolyl group. |