The chemical with the SMILES representation of CCn1nnc(NC(=O)c2cccc(-c3cc4ccccc4oc3=O)c2)n1 is not an inhibitor of the protein kinase A (PKA).
The {#molecule|compound|chemical|molecular species|chemical compound!} with the {SMILES__description} {#representation of |!}{SMILES#} is {MUV-548#not &NULL}{MUV-548__names__noun}.
CCn1nnc(NC(=O)c2cccc(-c3cc4ccccc4oc3=O)c2)n1
CCn1nnc(NC(=O)c2cccc(-c3cc4ccccc4oc3=O)c2)n1
N-(2-ethyltetrazol-5-yl)-3-(2-oxochromen-3-yl)benzamide