define CHydr  DC.C2, DC.C4, DC.C5, DC.C6 
define CPolar DC.N3, DC.N4, DC.N1, DC.O2 

define THydr  DT.C2, DT.C4, DT.C5, DT.C6, DT.C7 
define TPolar DT.O2, DT.O4, DT.N1, DT.N3

define AHydr  DA.C2, DA.C4, DA.C5, DA.C6, DA.C8 
define APolar DA.N6, DA.N1, DA.N3, DA.N7, DA.N9

define GHydr  DG.C2, DG.C4, DG.C5, DG.C6, DG.C8 
define GPolar DG.O6, DG.N1, DG.N2, DG.N3, DG.N7, DG.N9
 
define DNAPolar CPolar,TPolar,APolar,GPolar
define DNAHydr  CHydr,THydr,AHydr,GHydr

define POOST *.OP1,*.OP2
define hydrsugar *.c1', *.c2', *.c3', *.c4', *.c5'
define polarsugar *.o4', *.o5', *.o3'