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(3R,5aS,10bR,11aS)-3,6-dimethyl-10b-(2-methylbut-3-en-2-yl)-2,3,6,10b,11,11a-hexahydro-4H-pyrazino[1',2':1,5]pyrrolo[2,3-b]indole-1,4(5aH)-dione
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1,8-di-tert-butyl 2-methyl (2S,3aS,8aR)-3a-(2,5-dimethoxyphenyl)-2,3,3a,8a-tetrahydropyrrolo[2,3-b]indole-1,2,8-tricarboxylate
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1,8-di-tert-butyl 2-methyl (2S,3aR,8aR)-3a-((2,2,6,6-tetramethylpiperidin-1-yl)oxy)-2,3,3a,8a-tetrahydropyrrolo[2,3-b]indole-1,2,8-tricarboxylate
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