Water → HCID 67842295, compound
Reaction equation
Cl.Cl.Cl.NC[C:6]1[N:11]=[C:10]([C:12]2[N:13]=[C:14]([N:17]=[C:18]([NH2:20])[NH2:19])[S:15][CH:16]=2)[CH:9]=[CH:8][CH:7]=1.[CH2:21](N(CC)CC)C.[CH3:28][O:29][CH2:30]C(Cl)=O.O.C[N:36](C)[CH:37]=[O:38]>>[NH2:20][C:18](=[N:17][C:14]1[S:15][CH:16]=[C:12]([C:10]2[C:9]([CH3:21])=[CH:8][CH:7]=[C:6]([NH:36][C:37](=[O:38])[CH2:28][O:29][CH3:30])[N:11]=2)[N:13]=1)[NH2:19]Participants
6
Procedure
To a mixture of 4-(6-aminomethylpyridin-2-yl)-2-(diaminomethyleneamino)thiazole trihydrochloride (3.0 g) and triethylamine (4.7 ml) in N,N-dimethylformamide (60 ml) was added a methoxyacetyl chloride (0.9 ml) under ice-cooling and the mixture was stirred for 2.5 hours at the same temperature. The reaction mixture was added to water and the mixture was extracted with a mixture of ethyl acetate and tetrahydrofuran. The extract layer was washed with brine, dried over magnesium sulfate and evaporated in vacuo. The residue was recrystallized from a mixture of methanol, dioxane and diisopropyl ether to give 2-(diaminomethyleneamino)-4-(6-methoxyacetylamino-methylpyridin-2-yl)thiazole (0.86 g).
Workup
- temperaturecooling
- extractionthe mixture was extracted with a mixture of ethyl acetate and tetrahydrofuran
- washThe extract layer was washed with brine
- dry with materialdried over magnesium sulfate
- customevaporated in vacuo
- customThe residue was recrystallized from a mixture of methanol, dioxane and diisopropyl ether
Sources & evidence
- ORD record
- ord-f758b99aae494fdb953725771344dd14
- Source dataset
- uspto-grants-1994_12
- Patent number
- US05371097
Reaction notes
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