中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
4-氯-6-甲基-2-(2-吡啶)嘧啶 | 4-chloro-6-methyl-2-(pyridin-2-yl)pyrimidine | 77168-31-1 | C10H8ClN3 | 205.647 |
—— | 6-methyl-2-(pyridin-2'-yl)pyrimidine-4(3H)-thione | 77168-32-2 | C10H9N3S | 203.268 |
The condensation of 3-aminocrotonamide with ethyl pyridine-2-carboxylate or a related ester gave 6-methylpyrimidin-4(3H)-ones, each bearing at its 2-position a pyridin-2'-yl, pyridin-3'-yl, pyridin- 4'-yl, furan-2'-yl, furan-3'-yl, thien-2'-yl or pyrazin-2'-yl substituent. Of these, the pyridinyl derivatives (1a), (2a) and (3a) were converted into their 4-chloro analogues and thence by nucleophilic displacement into the corresponding β-dimethylaminoethylthio, β-dimethylaminoethylamino, β-dimethylaminoethoxy and γ-dimethylaminopropylamino derivatives. The activities of these compounds as amplifiers of phleomycin against Escherichia coli are reported.