英文同义词: | 4-chloro-6,7-dihydro-5H-cyclopenta[d]pyrimidine;4-Chloro-6,7-dihydro-5H-cyclopentapyrimidine;4-chloro-6,7-dihydro-5H-cyclopenta[e]pyrimidine;4-chloro-5H,6H,7H-cyclopenta[d]pyrimidine;5H-Cyclopentapyrimidine, 4-chloro-6,7-dihydro-;4-chloro-6,7-dihydro-1H-cyclopenta[d]pyrimidine |