tert-butyl 3-(2-(hydroxymethyl)allyl)-1H-indole-1-carboxylate

tert-butyl 3-(2-(ethoxycarbonyl)allyl)-1H-indole-1-carboxylate

(2S,4S)-4-(tert-butoxycarbonyl)amino-2-[(1-(tert-butoxycarbonyl)indol-3-yl)methyl]-2-(hydroxymethyl)oxolan-5-one

(2S,4S)-4-(tert-butyloxycarbonyl)amino-2-[(1-(tert-butyloxycarbonyl)indol-3-yl)methyl]-5-oxooxolane-2-carboxylic acid

(2S,4R)monatin