Ammonium 2-((2R,3S,4S,5R,6S)-6-((R)-1-((2S,5R,7S,8R,9S)-2-((2S,2'R,3'S,5R,5'R)-3'-(((2R,4S,5S,6S)-4,5-dimethoxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-5'-((2S,3S,5R,6S)-6-hydroxy-3,5,6-trimethyltetrahydro-2H-pyran-2-yl)-2-methyloctahydro-[2,2'-bifuran]-5-yl)-9-hydroxy-2,8-dimethyl-1,6-dioxaspiro[4.5]decan-7-yl)ethyl)-2-hydroxy-4,5-dimethoxy-3-methyltetrahydro-2H-pyran-2-yl)acetate

1H-Spiro[furo[3,4-c]pyridine-3,4'-piperidine] hydrochloride

3H-Spiro[furo[3,4-c]pyridine-1,4'-piperidine] hydrochloride

tert-Butyl 4-chloro-2-oxospiro[indoline-3,4'-piperidine]-1'-carboxylate

2,3-Dimethyl-1,3,8-triazaspiro[4.5]dec-1-en-4-one hydrochloride

tert-Butyl 5-chlorospiro[indoline-3,4'-piperidine]-1'-carboxylate

Benzyl 6-bromospiro[indoline-3,4'-piperidine]-1'-carboxylate

tert-Butyl 2-azaspiro[4.5]decan-8-ylcarbamate

4,4,5,5-Tetramethyl-2-(1,4-dioxaspiro[4.5]decan-8-yl)-1,3,2-dioxaborolane

tert-Butyl 1-oxo-8-azaspiro[4.5]decane-8-carboxylate