611-10-9
2-氧代环戊羧酸乙酯
→
1899-39-4
6,7-dihydro-5H-cyclopenta[d]pyrimidine-2,4-diamine
33081-06-0
2-氨基-6,7-二氢-5H-环戊[d]嘧啶-4-醇
5461-89-2
4-氯-6,7-二氢-5H-环戊并嘧啶-2-胺