Jiang, G GnRH antagonists: a new generation of long acting analogues incorporating p-ureido-phenylalanines at positions 5 and 6. [electronic resource] - Journal of medicinal chemistry Feb 2001 - 453-67 p. digital Publication Type: Journal Article ISSN: 0022-2623 Standard No.: 10.1021/jm0003900 doi Subjects--Topical Terms: AnimalsCell LineDrug Evaluation, PreclinicalGelsGenes, ReporterGonadotropin-Releasing Hormone--antagonists & inhibitorsHistamine Release--drug effectsHumansLuteinizing Hormone--bloodMaleMast Cells--metabolismOligopeptides--chemical synthesisOrchiectomyPhenylalanine--analogs & derivativesRatsRats, Sprague-DawleySolubilityStructure-Activity RelationshipTestosterone--bloodUrea--analogs & derivatives