Spirotryprostatin A

(2S,3S,5aS,10aS)-6′-Methoxy-3-(2-methyl-1-propen-1-yl)-5a,6,7,8-tetrahydro-1H,5H-spiro[dipyrrolo[1,2-a:1′,2′-d]pyrazine-2,3′-indole]-2′,5,10(1′H,10aH)-trione

Spiro[1H,5H-dipyrrolo[1,2-a:1′,2′-d]pyrazine-2(10H),3′-[3H]indole]-2′,5,10(1′H,3H)-trione, 1,5a,6,7,8,10a-hexahydro-6′-methoxy-3-(2-methyl-1-propen-1-yl)-, (2S,3S,5aS,10aS)-

Spirotryprostatin A

[Wiki]

(3S,5S,6S,9S)-6′-methoxy-6-(2-methylprop-1-enyl)spiro[1,7-diazatricyclo[7.3.0.03,7]dodecane-5,3′-1H-indole]-2,2′,8-trione

182234-25-9