Monge, A New 4-amino-7,8-dimethoxy-5H-pyrimido[5,4-b]indole derivatives: synthesis and studies as inhibitors of phosphodiesterases. [electronic resource] - Archiv der Pharmazie Nov 1993 - 879-85 p. digital Publication Type: Journal Article ISSN: 0365-6233 Standard No.: 10.1002/ardp.19933261108 doi Subjects--Topical Terms: AnimalsCattleDogsFemaleGuinea PigsHeart--drug effectsHumansIn Vitro TechniquesIndoles--chemical synthesisMaleMuscle, Smooth, Vascular--drug effectsPhosphodiesterase Inhibitors--chemical synthesisPlatelet Aggregation Inhibitors--pharmacologyPyrimidines--chemical synthesisRatsRats, WistarVasodilator Agents--chemical synthesis