The chemical with the SMILES O=C1c2ccccc2OCOc2ccccc21 is not an allosteric inhibitor of the M1 receptor.
The {#molecule|compound|chemical|molecular species|chemical compound!} with the {SMILES__description} {#representation of |!}{SMILES#} is {MUV-859#not &NULL}{MUV-859__names__noun}.
O=C1c2ccccc2OCOc2ccccc21
O=C1c2ccccc2OCOc2ccccc21
benzo[d][1,3]benzodioxocin-5-one