tert-butyl 7-methyl-1,4-dioxa-8-azaspiro[4.5]decane-8-carboxylate

7-methyl-8-(tert-butoxycarbonyl)-1,4-dioxo-8-azaspiro[4,5]decane

7-methyl-1,4-dioxa-8-azaspiro[4.5]decane

二碳酸二叔丁酯

仲丁基锂