6533b86ffe1ef96bd12cdb03

RESEARCH PRODUCT

Diuretika, 3. Mitt. 1-Carbocyclisch und heterocyclisch substituierte 4-Aminopyrazolo[3,4-d]pyrimidine

Alfred KreutzbergerAlfred KreutzbergerK. Burgwitz

subject

Formamidechemistry.chemical_compoundPyrimidineStereochemistryChemistryDrug DiscoveryPharmaceutical Science

description

In Anlehnung an das diuretisch wirksame 4,6-Diamino-1-(2-pyridyl)-1H-pyrazolo[3,4-d]pyrimidin wurden durch Kondensation der 5-Amino-4-cyanpyrazole 1a–g mit Formamid (2) die korrespondierenden 4-Aminopyrazolo[3,4-d]pyrimidine 3a–g dargestellt. Diuretics, III: 4-Aminopyrazolo[3,4-d]pyrimidines with Carbocyclic or Heterocyclic Substituents at N-1 As analogues of the diuretically active 4,6-diamino-1-(2-pyridyl)-1H-pyrazolo[3,4-d]pyrimidine, the 4-aminopyrazolo[3,4-d]pyrimidines 3a–g were prepared by condensation of the 5-amino-4-cyanopyrazoles 1a–g with formamide (2).

https://doi.org/10.1002/ardp.19813140504