2-Methoxypyridine-3,4-diamine → HCID 70420390, compound
Reaction equation
C[O:2][C:3]1[C:8]([NH2:9])=[C:7]([NH2:10])[CH:6]=[CH:5][N:4]=1.CO[C:13]1[CH:21]=[C:20]([C:22]#N)[CH:19]=[CH:18][C:14]=1[C:15]([OH:17])=[O:16].[Cl:24][CH:25](Cl)C.[CH2:28]([OH:30])C>>[ClH:24].[CH3:28][O:30][C:21]1[CH:13]=[C:14]([C:15]([O:17][CH3:25])=[O:16])[CH:18]=[CH:19][C:20]=1[C:22]1[N:9]=[C:8]2[C:3](=[O:2])[NH:4][CH2:5][CH:6]=[C:7]2[N:10]=1Participants
4
Procedure
Prepared analogously to Example 1 from 2-methoxy-3,4-diaminopyridine and 2-methoxy-4-cyano-benzoic acid. The product mixture obtained is digested with dichloroethane/ethanol (3:1). The undissolved material is filtered off, and the solution is evaporated and boiled with methanolic hydrochloric acid. On cooling, the product crystallizes out in the form of the hydrate.
Workup
- customThe product mixture obtained
- filtrationThe undissolved material is filtered off
- customthe solution is evaporated
- temperatureOn cooling
- customthe product crystallizes out in the form of the hydrate
Sources & evidence
- ORD record
- ord-1bcc2a3d16bb4766b58a295e2fc2fc6b
- Source dataset
- uspto-grants-1988_02
- Patent number
- US04722929
Reaction notes
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