Dimethyl Sulfoxide → HCID 135554981, compound
Reaction equation
[O:1]=[C:2]1[NH:10][CH:9]=[N:8][C:7]2[N:6]([CH2:11][CH2:12][C:13](OC3C=CC([N+]([O-])=O)=CC=3)=O)[CH:5]=[N:4][C:3]1=2.[C:25]1([N:31]2[C:35]3([CH2:40][CH2:39][NH:38][CH2:37][CH2:36]3)[C:34](=[O:41])[NH:33][CH2:32]2)[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1.CS(C)=[O:44]>>[O:1]=[C:2]1[NH:10][CH:9]=[N:8][C:7]2[N:6]([CH2:11][C:12](=[O:44])[CH2:13][N:38]3[CH2:37][CH2:36][C:35]4([N:31]([C:25]5[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=5)[CH2:32][NH:33][C:34]4=[O:41])[CH2:40][CH2:39]3)[CH:5]=[N:4][C:3]1=2Participants
Procedure
0.300 g (0.9111 mmol) of 3-(1,6-dihydro-6-oxo-9H-purin-9-yl)-propanoic acid, 4-nitrophenyl ester (AIT-0081) and 0.212 g (0.9165 mmol) of 1-phenyl-1,3,8-triazaspiro[4.5]decane-4-one were placed into a 10 ml round bottom flask equipped with a magnetic stirring bar. 2 ml of dimethylsulfoxide (dried over barium oxide) was added and the solution was stirred in a closed flask at room temperature for 20 hours. The reaction was allowed to proceed overnight to ensure completion. The solvent was removed with vacuum using gentle heat (approximately 45 deg.). 10 ml ethyl acetate was added to the stirring residue (oil) and a copious white precipitate formed immediately. The solution was stirred for 30 minutes to ensure homogeneity. Upon filtration, washing with ethyl acetate, and drying, 345 mg of a free flowing white solid, 3-(1,6-dihydro-6-oxo-9H-purin-9-yl)-1-(1-phenyl-4-oxo-1,3,8-triazaspiro[4.5]dec-8-yl)propanone (AIT-0098) was obtained. Yield: 90%.
Workup
- customequipped with a magnetic stirring bar
- waitto proceed overnight
- customThe solvent was removed with vacuum
- temperatureusing gentle heat (approximately 45 deg.)
- addition10 ml ethyl acetate was added to the stirring residue (oil)
- customa copious white precipitate formed immediately
- stirringThe solution was stirred for 30 minutes
- filtrationUpon filtration
- washwashing with ethyl acetate
- customdrying
- customwas obtained
Sources & evidence
- ORD record
- ord-47e9975f856f43caac2950406236f1c0
- Source dataset
- uspto-grants-1992_02
- Patent number
- US05091432
Reaction notes
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