Hoechst Aktiengesellschaft

Werner Pfaff

Rudi Weyer

Volker Hitzel

Karl Geisen

Laszlo Vertesy

Hans-Ludwig Weidenmuller

Volker Oeding

Helmut Weber

Inhibitor for the glycoside hydrolases of the digestive tract, more particularly of the pancreatic .alpha.-amylase produced by fermentation of the specific microorganism Streptomyces tendae, strain 4158, as well as the variants and mutants thereof, the microbe strain per se and processes for the isolation of the inhibitor and for its purification.

.alpha.-Amylase inhibitor from a streptomycete and process for its

Acyl-aminoalkyl-benzoic acid and derivates thereof show a blood sugar lowering effect upon oral administration and can be used as orally applicable hypoglycemiants.

Benzoic acids, their derivatives and process for preparing them

Benzoic acid derivatives of the formula ##STR1## wherein T is hydrogen or halogen, W is a carboxyl group, an ester or salt thereof; X is ##STR2## wherein R.sub.1 is alkyl having from 2 to 8 carbon atoms, aralkyl or phenyl, cycloalkyl, cycloalkylalkyl or alkylcycloalkyl; R.sub.2 is hydrogen or halogen, R.sub.3 is alkyl having from 5 to 8 carbon atoms, aralkyl or phenyl, or cycloalkyl having from 5 to 8 carbon atoms; R.sub.4 is hydrogen or alkyl; Y is a single chemical bond or a hydrocarbon chain having from 1 to 3 carbon atoms; and Z is hydrogen, halogen, alkyl, alkoxy, alkoxyalkoxy or alkenyloxy, have a blood sugar lowering effect and can be used for the treatment of Diabetes mellitus.

Certain nicotinamido-n-benzoic acid derivatives

Benzenesulfonyl ureas of the formula ##STR1## in which R, R.sup.1, X, X.sup.1 and Y have the defined meanings, and the salts thereof, process for preparing these compounds, pharmaceutical preparations containing them and their use for lowering the blood sugar level.

Benzenesulfonyl ureas

Benzenesulfonyl ureas of the formula ##STR1## in which R, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and Y have the defined meanings, and the salts thereof, process for preparing them, pharmaceutical preparations containing them and their use for lowering the blood sugar level.

Benzenesulfonyl ureas and their use for the treatment of diabetes

N-acylaminoalkyl-benzenesulfonyl-N'-methyl ureas, especially those of the general formula ##STR1## in which R is C.sub.1-- C.sub.4 --alkyl or a phenyl radical substituted in 2-position by alkoxy of 1 to 4 carbon atoms, phenoxy or dimethylamino and in 5-position by H, CH.sub.3, Cl or Br, their manufacture and their use as oral antidiabetics.

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Werner Pfaff