tert-butyl (2S,6S)-2-(3-(dimethoxyphosphoryl)-2-oxo-propyl)-6-methylpiperidine-1-carboxylate

2-(4-(2-(2,2-dimethoxyethyl)-1,3-dithian-2-yl)bytoxy)tetrahydro-2H-pyran

2-(2-(4-hydroxybutyl)-1,3-dithian-2-yl)acetaldehyde

tert-butyl (2S,6S)-2-(3-((8R,9R)-9-formyl-1,5-dithiaspiro[5.5]undecan-8-yl)-2-oxopropyl)-6-methylpiperidine-1-carboxylate

tert-butyl (2S,6S)-2-(3-((8R,9R)-9-((Z)-3-methoxy-3-oxoprop-1-en-1-yl)-1,5-dithiaspiro[5.5]undecan-8-yl)-2-oxopropyl)-6-methylpiperidine-1-carboxylate