(E)-1,1'-dibenzyl-[3,3'-biindolinylidene]-2,2'-dione

(2'S,3S,4'R,5'R)-1-benzyl-4',5'-dihydroxy-1''-methyldispiro[indoline-3,1'-cyclohexane-2',3''-indoline]-2,2''-dione

(3S,3''S,3'aR,7'aR)-1-benzyl-1''-methyl-2',2'-dimethyl-3'a,4',7',7'a-tetrahydrospiro[3H-indole-3,5'(6'H)-[1,3]benzodioxole-6'-3''-[3H]indole]-2,2''-(1H,1''H)-dione

7-iodo-1,1',8-trimethyl-2,3,8,8aS,2',3',8',8'aR-octahydro-1H,1'H-[3aS,3'aS]bipyrrolo[2,3-b]indole

trifluoromethanesulfonic acid 2-(methyl{4-[methyl(toluene-4-sulfonyl)amino]but-2-ynoyl}amino)phenyl ester