Merck Patent Gesellschaft MIT Beschrankter Haftung

Pharmacon Forschung Und Beratung Gmbh

Christian Noe

Hans-Peter Buchstaller

Joachim Leibrock

Rudolf Gottschlich

Michael Berger

Antje Weigand-Becker

L-aspartyl-L-thienylalanine methyl esters of the formula ##STR1## where A is a radical of the formula ##STR2## in which R can be H or CH.sub.3, a process for its preparation, and its use as sweetener.

L-aspartyl-L-thienylalanine methyl ester, process for its preparation

Thienopyridone derivatives of the formula I ##STR1## in which B is CH or N, ##STR2## is ##STR3## R is H, ##STR4## R.sup.1, R.sup.2 and R.sup.5 are in each case H, A or Hal, R.sup.3 and R.sup.4 are in each case H, A, OH, OA, Hal, CF.sub.3 , NO.sub.2, NH.sub.2, NHA, N(A).sub.2 or NHAc,

Thienopyridones

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Frankfurt-am-Main, Germany

Christian Noe