The chemical with the SMILES representation of O=C(CN1C(=O)NC2(CCCCCC2)C1=O)NCc1cccs1 is not an inhibitor of factor XIa (FXIa).
The {#molecule|compound|chemical|molecular species|chemical compound!} with the {SMILES__description} {#representation of |!}{SMILES#} is {MUV-846#not &NULL}{MUV-846__names__noun}.
2-(2,4-dioxo-1,3-diazaspiro[4.6]undecan-3-yl)-N-(thiophen-2-ylmethyl)acetamide