4-(3-((3S,6S)-6-((S)-5-amino-1-(methylamino)-1,5-dioxopentan-2-ylcarbamoyl)-4-oxo-1,2,3,4,6,7-hexahydroazepino[3,2,1-hi]indol-3-ylamino)-3-oxoprop-1-enyl)phenyl dihydrogen phosphate bioactivity Signal transducer and activator of transcription 3 (Knowledge Graph Assertion)