(1R,4S)-2-氧代-7-氮杂双环[2.2.1]庚烷-7-羧酸叔丁酯

(1R,5S,6S)-5-(tert-Butyl-dimethyl-silanyloxy)-2-trimethylsilanyloxy-7-oxa-bicyclo[4.1.0]hept-2-ene

(1R,5S,6S)-5-(tert-Butyl-dimethyl-silanyloxy)-3-methyl-3-phenylselanyl-7-oxa-bicyclo[4.1.0]heptan-2-one

(1R,5S,6S)-3-Bromo-5-(tert-butyl-dimethyl-silanyloxy)-3-phenylselanyl-7-oxa-bicyclo[4.1.0]heptan-2-one