The molecule with the SMILES O=C1c2ccccc2-c2nccnc21 is not an inhibitor of 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=C1c2ccccc2-c2nccnc21
O=C1c2ccccc2-c2nccnc21
indeno[1,2-b]pyrazin-9-one