- Racemic-(1S,3S,4R)-2-benzyl 1′-tert-butyl 3-ethyl 2-azaspiro[bicyclo[2.2.1]heptane-7,4′-piperidine]-1’,2,3-tricarboxylate,95%, 100mg
- Racemic-(1S,3S,4R)-2-benzyl 1′-tert-butyl 3-ethyl 2-azaspiro[bicyclo[2.2.1]heptane-7,4′-piperidine]-1’,2,3-tricarboxylate,95%, 250mg