반응식
C(OC(=O)[NH:5][C:6]1[C:11]([O:12][CH3:13])=[CH:10][C:9]([CH2:14][C:15]2[C:16]([NH2:22])=[N:17][C:18]([NH2:21])=[N:19][CH:20]=2)=[CH:8][C:7]=1[O:23][CH3:24])C.[OH-].[Na+]>C(O)C>[NH2:21][C:18]1[N:17]=[C:16]([NH2:22])[C:15]([CH2:14][C:9]2[CH:8]=[C:7]([O:23][CH3:24])[C:6]([NH2:5])=[C:11]([O:12][CH3:13])[CH:10]=2)=[CH:20][N:19]=1참가 물질
4
실험 절차
A suspension of 1.04 g. of 4-[(2,4-diamino-5-pyrimidinyl)-methyl]-2,6-dimethoxy-carbanilic acid ethyl ester in a mixture of 50 ml. of 4N sodium hydroxide and 50 ml. of ethanol was boiled under reflux for 18 hours, whereby a solution gradually resulted. The alcohol was removed under vacuum. After standing at room temperature for 1 hour, the crystallized 2,4-diamino-5-(4-amino-3,5-dimethoxy-benzyl)-pyrimidine was removed by filtration with suction, washed with water, recrystallized from methanol and had a melting point of 215°-216° C.
후처리
- additionA suspension of 1.04 g
- temperatureunder reflux for 18 hours
- customwhereby a solution gradually resulted
- customThe alcohol was removed under vacuum
- customthe crystallized 2,4-diamino-5-(4-amino-3,5-dimethoxy-benzyl)-pyrimidine was removed by filtration with suction
- washwashed with water
- customrecrystallized from methanol
출처 및 근거
- ORD 기록
- ord-90c5637951a24fd28c9d14d157a929dc
- 출처 데이터셋
- uspto-grants-1988_12
- 특허 번호
- US04792557
연결된 노트
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