[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][N][C@@H1][Branch2][Ring2][=Branch1][C][O][C@@H1][C@@H1][Branch2][Ring1][=C][C@H1][Branch2][Ring1][=Branch2][C@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][F][O][O][C@@H1][Branch2][Ring1][Ring1][C@@H1][Branch1][#C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][O][O]"}, {"from": "gpt", "value": "The molecule is a glycophytoceramide having a 4-O-(4-fluorobenzyl)-alpha-D-galactosyl residue at the O-1 position and a hexacosanoyl group attached to the nitrogen. One of a series of an extensive set of 4\"-O-alkylated alpha-GalCer analogues evaluated (PMID:30556652) as invariant natural killer T-cell (iNKT) antigens. It is functionally related to an alpha-D-galactose."}]