1,4-Dioxane → HCID 19014324、化合物
反応式
[CH3:1][C:2]1[N:3]=[C:4]([NH:17][CH3:18])[C:5]2[CH:10]=[CH:9][N:8]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=3)[C:6]=2[N:7]=1.O1CCOC[CH2:20]1>>[CH3:1][C:2]1[N:3]([CH3:20])[C:4](=[N:17][CH3:18])[C:5]2[CH:10]=[CH:9][N:8]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=3)[C:6]=2[N:7]=1参加物
実験手順
A mixture of 2-methyl-4-methylamino-7-phenyl-7H-pyrrolo-[2,3-d] pyrimidine (0.5g, 2.1mM) and dioxan (15ml) was heated under reflux for 18 hours. The mixture was cooled and then the solvent was removed by evaporation. The residue was purified by flash chromatography on ICN neutral alumina (32-63) using methylene chloride which contained an increasing amount of methanol (up to a maximum of 5%) as eluant to give a solid. This solid was recrystallised from hexane to give 2,3-dimethyl-4-methylimino-7-phenyl-3H,7H-pyrrolo[2,3-d] pyrimidine as a white solid (126mg), m p. 160-161° C; microanalysis, found: C, 71 2; H,5 9; N,22.0%; C14H14N4 requires C,71.4; H, 6.3; N, 22.2%; NMR: 2.48(3H,s,C-CH3), 3.48 (3H,s,N-CH3), 3.56(3H,s,N-CH3), 6.90(1H,d,CH), 6.97(1H,d,CH), 7.34(1H, complex, aromatic), 7.47(2H, complex, aromatic), 7.60(1H, complex, aromatic).
後処理
- temperaturewas heated
- temperatureunder reflux for 18 hours
- temperatureThe mixture was cooled
- customthe solvent was removed by evaporation
- customThe residue was purified by flash chromatography on ICN neutral alumina (32-63)
- customto give a solid
- customThis solid was recrystallised from hexane
出典と根拠
- ORDレコード
- ord-9b22da2a913e436a8f35130a03a09de6
- 出典データセット
- uspto-grants-1994_07
- 特許番号
- US05328910
反応ノート
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