Triethylamine → HCID 178477732, compound

HRID 2379854Notes

Reaction equation

HRID 2379854 reaction equation
Cl.Cl.Cl.[NH2:4][CH2:5][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:23](CC)CC)C.[CH2:28]([S:30](C(=N)OCC)(=[O:32])=[O:31])[CH3:29]>CO>[NH2:19][C:18](=[N:17][C:14]1[S:15][CH:16]=[C:12]([C:10]2[CH:9]=[CH:8][CH:7]=[C:6]([CH2:5][NH:4][CH:21]=[N:23][S:30]([CH2:28][CH3:29])(=[O:31])=[O:32])[N:11]=2)[N:13]=1)[NH2:20]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 189538374-(6-Aminomethylpyridin-2-yl)-2-(diaminomethyleneamino)thiazole trihydrochlorideHCID 18953866Ethyl ethanesulfonylformimidate

Product 1

HCID 178477732HCID 178477732, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A mixture of 4-(6-aminomethylpyridin-2-yl)-2-(diaminomethyleneamino)thiazole trihydrochloride (3.0 g), triethylamine (3.5 ml) and ethyl ethanesulfonylformimidate (1.5 g) in methanol (60 ml) was stirred at ambient temperature for 6.5 hours and after solvent was removed by concentration in vacuo. To the residue was added a mixture of tetrahydrofuran, ethyl acetate and water and the mixture was adjusted to pH 9.5 with 20% aqueous potassium carbonate. The separated organic layer was washed with brine and dried over magnesium sulfate. Evaporation of the solvent gave a residue, which was purified by column chromatography on silica gel eluting with a mixture of chloroform and methanol (9:1, V/V). The eluted fractions containing the desired product were collected and evaporated in vacuo. The residue was recrystallized from a mixture of methanol, dioxane and diisopropyl ether to give 2-(diaminomethyleneamino)-4-(6-ethanesulfonyliminomethylaminomethylpyridin-2-yl)thiazole (0.88 g).

Workup

  1. customafter solvent was removed by concentration in vacuo
  2. additionTo the residue was added
  3. additiona mixture of tetrahydrofuran, ethyl acetate and water
  4. washThe separated organic layer was washed with brine
  5. dry with materialdried over magnesium sulfate
  6. customEvaporation of the solvent
  7. customgave a residue, which
  8. customwas purified by column chromatography on silica gel eluting with a mixture of chloroform and methanol (9:1, V/V)
  9. additionThe eluted fractions containing the desired product
  10. customwere collected
  11. customevaporated in vacuo
  12. customThe residue was recrystallized from a mixture of methanol, dioxane and diisopropyl ether

Sources & evidence

ORD record
ord-ab26245d2dc94e7687c18b037471b6cb
Source dataset
uspto-grants-1994_11
Patent number
US05364871

Reaction notes

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