A_dopa -> C_dopa
A_dopa -> 0
A_M -> C1_M
A_B -> C1_B
A_B -> 0
C_dopa -> 0
C_dopa -> C_OMD
C_dopa -> 0
C_OMD -> 0
C1_B -> 0
C1_B -> C1_M
C1_M -> 0
C1_B <-> C2_B
C1_M <-> C2_M