asperversiamide C

(1S,3R,5R,7S)-2′,2′,4,4-Tetramethyl-2′H,13H-spiro[9,14-diazatetracyclo[5.5.2.0~1,9~.0~3,7~]tetradecane-5,6′-pyrano[3,2-f]indole]-7′,8,13(8′H)-trione

asperversiamide C