The present invention provides isotopically labeled oxazinocarbazole derivatives having a ring connecting position 8 (C-8) and position 9 (N-9), and more specifically, provides compounds of formula (I) wherein R1, R2, R3 and R4 are described herein. These compounds are useful in the diagnostic analysis of diseases wherein modulation of 5-HT activity is desired.
本发明提供了具有环连接位置8(C-8)和位置9(N-9)的同位素标记的噁嗪
喹啉衍
生物,更具体地提供了符合以下式(I)的化合物,其中R1、R2、R3和R4如本文所述。这些化合物在需要调节5-HT活性的疾病的诊断分析中很有用。