Synthesis and Reactivity of 2-Pyrrolidino-, 2-N-Methylpiperazino-, 2-Piperidino-, and 2-Morpholino-1,3,4-thiadiazines
摘要:
A variety of 2‐pyrrolidino‐, 2‐N‐methylpiperazino‐, 2‐piperidino‐, and 2‐morpholino‐1,3,4‐thiadiazines were prepared by cyclocondensation of phenacyl halides with thiosemicarbazides. Heating of the products resulted in desulfurization and formation of pyrazoles. The rate of this process strongly depends on the substitution pattern of the 1,3,4‐thiadiazines.
Ensembling three multicomponent reactions for the synthesis of a novel category of pseudo-peptides containing dithiocarbamate and N,X-heterocylic groups
Consecutive multicomponentreactions have been applied for the synthesis of novel pseudo-peptides bearing dithiocarbamate and N,X-heterocyclic groups (X = S, O) in only one structure. The first multicomponentreaction includes the synthesis of dithiocarbamates using an amine or amino acid, CS2 and an electrophile. The second MCR is synthesis of Asinger imines using 2-chloroisobutyraldehyde, NaXH (X = S
Novel peptidomimetics containing dithiocarbamate groups were synthesized via the Ugi reaction. Also, dithiocarbamates of natural amino acids were prepared and were used successfully in Ugi reactions to prepare novel peptidomimetics bearing amino acid and dithiocarbamate groups in a single structure. In addition the prepared dithiocarbamates based on amino acids are converted to the corresponding amides
Die vorliegende Erfindung betrifft neue chemische Wirkstoffe gegen Erkrankungen, die durch Helminthen hervorgerufen werden (z. B. Schistosomiasis). Sie umfasst im wesentlichen Verbindungen mit mindestens einer Dithiocarbamat-und/oder Dithiocarbazat-Teilstruktur.