摘要:
Salmycins, a process for their preparation and their use as a pharmaceutical Compounds of formula I, ##STR1## wherein R denotes .dbd.NOH (a), .dbd.O (b); --OH and --H (c), --NH.sub.2 and --H (d) or .dbd.N--O--R'(e);R' denotes phenyl or a branched or unbranched alkyl with 1 to 10 carbon atoms,R" denotes H, alkyl, hydroxy-alkyl and amino-alkyl, as well as the chemical equivalents and physiologically acceptable salts thereof. The salmycins and their derivatives are used as a pharmaceutical.
摘要:
The invention relates to insulin derivatives of the formula III ##STR1## in which R.sup.30 and R.sup.31 together are OH, or R.sup.30 is a radical of a neutral, genetically encodable L-amino acid and R.sup.31 is OH or a physiologically acceptable organic group of basic character having up to 50 carbon atoms, whose synthesis involves 0 to 3 .alpha.-amino acids and whose optional terminal carboxyl function can be present free, as an ester function, as an amide function, as a lactone or reduced to CH.sub.2 OH, and R.sup.A-1 is a radical of a genetically encodable L-amino acid, and physiologically acceptable salts of said insulin derivative of the formula III.
摘要:
Pseudooligosaccharides of the formula I ##STR1## in which l, m and n have the meanings given, physiologically acceptable salts thereof with acids, a process for their preparation, pharmaceutical products and their use are described. The compounds have an .alpha.-glucosidase-inhibiting action.
摘要:
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.
摘要:
A novel process for obtaining cephalosporin C and the salts and derivatives thereof from culture filtrates or culture solutions is provided which comprises drying the culture filtrate or culture solution, dissolving it in an optionally water-containing solvent different from water, and(a) forming a derivative of the amino group of cephalosporin C, and isolating it in the form of a free acid or a salt, or(b) precipitating the cephalosporin C or the scarcely soluble salt thereof directly.