[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][N][C][C][N][C][C][C][N][Branch1][#Branch1][C][C][N][C][Ring1][=C][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][N][C][C][C][N][C][C][N][C][C][C][N][C][C][Ring1][=C]"}, {"from": "gpt", "value": "The molecule is a small molecular antagonist of the cell-surface CXCR4 receptor that plays an important role in mobilization of hematopoietic stem and progenitor cells to the stroma of the bone marrow; blocking the receptor helps to mobilize stem cells from the marrow to peripheral blood allowing for collection of these cells by apheresis for hematopoietic cell transplantation. Plerixafor is generally well tolerated and has not been linked to serum enzyme elevations or to clinically apparent liver injury."}]