"(3S,6S)-5-[(TERT-BUTOXY)CARBONYL]-1,1-DIFLUORO-5-AZASPIRO[2.4]HEPTANE-6-CARBOXYLICACID"
"(3S,6S)-5-[(TERT-BUTOXY)CARBONYL]-1,1-DIFLUORO-5-AZASPIRO[2.4]HEPTANE-6-CARBOXYLICACID"
"(3S,6S)-5-[(TERT-BUTOXY)CARBONYL]-1,1-DIFLUORO-5-AZASPIRO[2.4]HEPTANE-6-CARBOXYLICACID"
"(3S,6S)-5-(叔丁氧羰基)-1,1-二氟-5-氮杂螺[2.4]庚烷-6-羧酸"
"(3S,6S)-5-(叔丁氧羰基)-1,1-二氟-5-氮杂螺[2.4]庚烷-6-羧酸"
"(3S,6S)-5-(叔丁氧羰基)-1,1-二氟-5-氮杂螺[2.4]庚烷-6-羧酸"
"(3S,6S)-5-(叔丁氧羰基)-1,1-二氟-5-氮杂螺[2.4]庚烷-6-羧酸"