5-(((2-Aminoethyl)thio)methyl)-N,N-dimethyl-2-furanmethanamine → (3-Pyridyl)methylamino-1,2,5-thiadiazole 1-oxide
Reaction equation
CO[C:3]1[C:7]([NH:8][CH2:9][C:10]2[CH:11]=[N:12][CH:13]=[CH:14][CH:15]=2)=[N:6][S:5](=[O:16])[N:4]=1.CN(CC1OC(CSCCN)=CC=1)C>CO>[N:12]1[CH:13]=[CH:14][CH:15]=[C:10]([CH2:9][NH:8][C:7]2[CH:3]=[N:4][S:5](=[O:16])[N:6]=2)[CH:11]=1Participants
4
Procedure
To the methanol solution of 3-methoxy-4-(3-pyridyl)methylamino-1,2,5-thiadiazole 1-oxide produced in Step A was added a solution of 2-[(5-dimethylaminomethyl-2-furyl)methylthio]ethylamine (4.0 g; 18.7 mmoles) in 30 ml of methanol. The reaction mixture was stirred at ambient temperatures for 18 hours and the solvent was removed in vacuo. The residue was placed on 500 g of silica gel (230-400 mesh) and purified by flash chromatography using a gradient elution of acetonitrile-methanol After combining the appropriate fractions, the title compound was obtained as an amber oil (4.25 g) containing one mole of methanol.
Workup
- customthe solvent was removed in vacuo
- custompurified by flash chromatography
- washa gradient elution of acetonitrile-methanol
Sources & evidence
- ORD record
- ord-d065fec3fd0e414eb40a8339d417849e
- Source dataset
- uspto-grants-1985_04
- Patent number
- US04510309
Reaction notes
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