Abstract: The present invention provides a process for the preparation of a plasma based on starch by the hydrolytic decomposition of an amylopectin-rich starch to a definite molecular weight and partial etherification to a definite substitution before or after the hydrolysis, wherein the hydrolytic decomposition is carried out at least partly with .alpha.-amylase, .beta.-amylase or pullulanase.
Type:
Grant
Filed:
January 11, 1985
Date of Patent:
December 16, 1986
Assignee:
Laevosan-Gesellschaft mbH & Co. KG Chemisch-Pharmazeutische Industrie
Inventors:
Ernst Nitsch, Hubert P. Ferber, Siegfried Muhlbock
Abstract: The disclosure is directed to novel 1-[3-(2-hydroxy-3-alkylaminopropoxy)-2-thienyl]-3-phenyl-1-propanones and their salts. The compounds of the invention have the structural formula ##STR1## in which R and R.sub.1 are independently hydrogen or methyl and R.sub.2 is n-propyl, n-butyl, isobutyl or tert-butyl. The compounds have an outstanding antiarrhytmical activity already in low doses.
Abstract: A process for preparing hydroxyethyl starch suitable as a plasma extender by alkaline hydroxyethylation and neutralization wherein the hydroxyethyl starch is extracted with a solvent such as dimethylformamide to remove the salts formed on neutralization.
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