[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=C][Branch2][Ring1][Ring1][S][C][=N+1][Ring1][Branch1][C][C][=C][N][=C][Branch1][=Branch1][N][C][Ring1][=Branch1][=O][C][C][C][O]"}, {"from": "gpt", "value": "The molecule is a 1,3-thiazolium cation that is 5-(2-hydroxyethyl)-4-methyl-1,3-thiazole alkylated at the N3 position by a (2-methyl-4-oxo-1,4-dihydropyrimidin-5-yl)methyl group. It has a role as an antimetabolite and a vitamin B1 antagonist."}]