1,2-Dimethoxyethane → HCID 89629895, compound
Reaction equation
C([N:4]([C:6]([C:8]1[C:16]2[C:15]([C:17]3[CH:22]=[CH:21][CH:20]=[C:19]([N+:23]([O-:25])=[O:24])[CH:18]=3)=[N:14][CH:13]=[N:12][C:11]=2[N:10]([CH2:26][O:27][CH2:28][CH2:29][Si:30]([CH3:33])([CH3:32])[CH3:31])[CH:9]=1)=O)[NH2:5])(=O)C.P12(SP3(SP(SP(S3)(S1)=S)(=S)S2)=S)=[S:35].CO[CH2:50][CH2:51]OC>>[CH3:50][C:51]1[S:35][C:6]([C:8]2[C:16]3[C:15]([C:17]4[CH:22]=[CH:21][CH:20]=[C:19]([N+:23]([O-:25])=[O:24])[CH:18]=4)=[N:14][CH:13]=[N:12][C:11]=3[N:10]([CH2:26][O:27][CH2:28][CH2:29][Si:30]([CH3:33])([CH3:32])[CH3:31])[CH:9]=2)=[N:4][N:5]=1Participants
Conditions
- Temperature
- 50 °C
Procedure
To a solution of N-acetyl-4-(3-nitrophenyl)-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidine-5-carbohydrazide (0.40 g, 0.85 mmol) in ethylene glycol dimethyl ether (10 mL), was added P2S5 (378 mg, 1.70 mmol). The resulting solution was stirred for 1 hour at 50° C., then concentrated in vacuo and extracted with ethyl acetate (×3). The combined organic layers were washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. The reaction was purified by chromatography using silica gel, eluting with 1-100% ethyl acetate/petroleum ether. The product was collected and concentrated in vacuo to afford 2-methyl-5-(4-(3-nitrophenyl)-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-1,3,4-thiadiazole as a yellow oil. LRMS (ESI) calc'd for C21H25N6O3SSi [M+H]+: 469, found 469.
Workup
- concentrationconcentrated in vacuo
- extractionextracted with ethyl acetate (×3)
- washThe combined organic layers were washed with brine
- dry with materialdried over anhydrous sodium sulfate
- filtrationfiltered
- concentrationconcentrated in vacuo
- customThe reaction was purified by chromatography
- washeluting with 1-100% ethyl acetate/petroleum ether
- customThe product was collected
- concentrationconcentrated in vacuo
Sources & evidence
- ORD record
- ord-b2b3fb2c939f478686f3208741e7d6a9
- Source dataset
- uspto-grants-2015_03
- Patent number
- US08993756B2
Reaction notes
Loading…