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A new class of isoxazole derivatives: the M 1-9 series of compounds with immunotropic activity.
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2008
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Pharmaceutical ScienceBioorganic ChemistryOrganic ChemistryIsoxazole DerivativesPharmacotherapyHeterocycle ChemistryPharmaceutical ChemistryChemical DerivativeBiological EffectMedicinal ChemistryDerivativesBiochemistryPharmacological AgentPharmacologyNatural Product Synthesis5-Amino-3-methyl-4-isoxazolecarboxylic Acid SemicarbazidesHeterocyclicNatural SciencesNew ClassMedicineDerivative (Chemistry)Drug DiscoveryM 1-9 Series
The isoxazole derivatives are interesting objects for synthesis in the search for various sorts of biological activity. Looking for more active immunomodulators we synthesized a series of 5-amino-3-methyl-4-isoxazolecarboxylic acid semicarbazides and thiosemicarbazides in the reaction of 5-amino-3-methyl-4-isoxazolecarboxylic acid hydrazide with isocyanates and isothiocyanates. The biological effect of these compounds on the proliferative response of human mononuclear peripheral blood cells to phytohemagglutinin A (PHA) was described.