The chemical with the SMILES O=C1CCCc2nc(N3CCN(c4ccccc4)CC3)ncc21 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}.
O=C1CCCc2nc(N3CCN(c4ccccc4)CC3)ncc21
O=C1CCCc2nc(N3CCN(c4ccccc4)CC3)ncc21
2-(4-phenylpiperazin-1-yl)-7,8-dihydro-6H-quinazolin-5-one