Cyclic nucleotides

3',5'-Cyclic nuclcleotides

Purine

3',5'-Cyclic AMP
C00575		 3',5'-Cyclic GMP
C00942		 3',5'-Cyclic IMP
C00943
3',5'-Cyclic dAMP
C00968		 3',5'-Cyclic dGMP
C02507

Pyrimidine

3',5'-Cyclic CMP
C00941

2',3'-Cyclic nucleotides

Purine

2',3'-Cyclic AMP
C02353		 2',3'-Cyclic GMP
C06194

Pyrimidine

2',3'-Cyclic CMP
C02354		 2',3'-Cyclic UMP
C02355