- (R)-2-(6-(tert-Butoxycarbonyl)-8-(3,5-difluorophenyl)-10-oxo-6,9-diazaspiro[4.5]decan-9-yl)acetic acid,95%, 1g
- (R)-2-(6-(tert-Butoxycarbonyl)-8-(3,5-difluorophenyl)-10-oxo-6,9-diazaspiro[4.5]decan-9-yl)acetic acid,95%, 250mg