[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][Branch1][=N][C][=Branch1][C][=O][N][C][=Branch1][C][=O][N][Ring1][Branch2][C][N][C][C][C][C][N]"}, {"from": "gpt", "value": "The molecule is an N-substituted putrescine that is thymine in which a hydrogen of the methyl group has been replaced by one of the amino groups of putrescine. It replaces about half of the thymine residues in the DNA of bacetriophage phiW-14. It is a pyrimidone, a N-substituted putrescine, a secondary amino compound, a tertiary amino compound and a pyrimidine nucleobase. It is functionally related to a thymine."}]