| abstract |
Abstract of the Disclosure New carboxylic acid hydrazides of the formula (I), in which R represents an optionally esterified carboxy group, and salts of the compound of the formula I, in which R represents carboxy, possess antithrombotic properties and can be used as medicinal active substances in pharmaceutical preparations. They are manufactured, for example, by hydrolysing 1,2-diphenyl-4-(phenylthio-ethyl)pyrazolidin-3,5-dione or condensing a 2-(2-phenylthio-ethyl)malonic acid monoester with hydrazobenzene. |