tert-Butyl 3-hydroxy-1-oxa-6-azaspiro[3.3]heptane-6-carboxylate; 6-Boc-1-oxa-6-azaspiro[3.3]heptan-3-ol; tert-Butyl 3-hydroxy-1-oxa-6-azaspiro[3.3]heptane-6-carboxylate - B6708;