Procedure for the obtaining of new tioparabanic acids (Machine-translation by Google Translate, not legally binding)

摘要

Process for obtaining 2-thioparabanic acid derivatives of the formula ** (See formula) ** and its salts, where Py is for a pyridyl moiety, n for 0, 1 or 2 and R for a N, N-dialkylamino-alkoxy moiety or an alkoxy group with 4-5 carbon atoms, characterized in that 1, 3-diphenyl-thiourea of the formula ** (See formula) ** where Py, n and R have the meaning above, they are reacted with oxalic acid and, if desired, the salts obtained are transformed into free bases or the bases obtained in their salts. (Machine-translation by Google Translate, not legally binding)