[{"from": "human", "value": "Please give me some details about this molecule. [C][C@H1][C@H1][Branch2][Ring1][Branch1][C@H1][Branch1][P][C@@H1][Branch1][=N][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C][C][C][C][N][O][O][O]"}, {"from": "gpt", "value": "The molecule is a glycoside that is alpha-L-fucose in which the hydrogen of the anomeric hydroxy group is replaced by a 4-aminobutyl group. A synthetic version of the alpha-fucosyl glycoside (AFG) epitope from the major peanut allergen glycoprotein Arachis hypogaea h2 (Ara-h2). It has a role as an allergen. It is functionally related to an alpha-L-fucose."}]