P(=O)(O)(OCC1OC(CC1OP(=O)(O)OCC2OC(CC2OP(=O)(O)OCC3OC(CC3OP(=O)(O)OCC4OC(CC4OP(=O)(O)OCC5OC(CC5O)N6C=C(C)C(=O)NC6=O)N7C=CC(N)=NC7=O)N8C=CC(N)=NC8=O)N9C=CC(N)=NC9=O)N%10C=NC%11=C%10N=C(N)NC%11=O)OC%12CC(OC%12COP(=O)(O)OC%13CC(OC%13COP(=O)(O)OC%14CC(OC%14COP(=O)(O)O)N%15C=Nc%16c(N)ncnc%15%16)N%17C=C(C)C(=O)NC%17=O)N%18C=Nc%19c(N)ncnc%18%19