Ethyl isocyanate → HCID 43520595, compound
Reaction equation
[CH2:1]([NH:3][C:4]([NH:6][C:7]1[CH:12]=[CH:11][C:10](B2OC(C)(C)C(C)(C)O2)=[CH:9][N:8]=1)=[O:5])[CH3:2].[Br:22]C1N=C(N)C=CC=1.C(N=C=O)C>>[Br:22][C:9]1[N:8]=[C:7]([NH:6][C:4]([NH:3][CH2:1][CH3:2])=[O:5])[CH:12]=[CH:11][CH:10]=1Participants
4
Procedure
The title compound was synthesized by a method analogous to Intermediate 1 synthesis starting with 6-bromopyridin-2-amine and ethyl isocyanate. The crude residue was purified by flash chromatography (EtOAc/hexanes as eluent). MS (ESP): 245 (M+H+) for C8H10BrN3O; NMR: 1.08 (t, 3H), 3.16 (m, 2H), 7.26 (d, 1H), 7.64 (s, 1H), 7.75 (s, 1H), 8.08 (d, 1H), 9.29 (s, 1H).
Workup
- customThe crude residue was purified by flash chromatography (EtOAc/hexanes as eluent)
Sources & evidence
- ORD record
- ord-cf1e30c5badf4ea3ba3ef05481626e8d
- Source dataset
- uspto-grants-2010_03
- Patent number
- US07674801B2
Reaction notes
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