HCID 10806128, compound → 1-([1,1'-biphenyl]-4-ylmethyl)-4-hydroxy-2-methyl-1H-indole
Reaction equation
[C:1]1([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[CH:6]=[CH:5][C:4]([CH2:7][N:8]2[C:16]3[C:11](=[C:12]([O:17]C)[CH:13]=[CH:14][CH:15]=3)[CH:10]=[C:9]2[CH3:19])=[CH:3][CH:2]=1.B(Br)(Br)Br.C(Cl)Cl>>[C:1]1([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[CH:6]=[CH:5][C:4]([CH2:7][N:8]2[C:16]3[C:11](=[C:12]([OH:17])[CH:13]=[CH:14][CH:15]=3)[CH:10]=[C:9]2[CH3:19])=[CH:3][CH:2]=1Participants
3
Procedure
By the method used in Example 1, Part D, 1.3 g (4.0 mmol) of 1-([1,1-biphenyl]-4-ylmethyl)-4-methoxy-2-methyl-1H-indole was O-demethylated by treating it with 16 mL of 1M BBr3/CH2Cl2 to give 970 mg (77% yield) of crude 1-([1,1′-biphenyl]-4-ylmethyl)-4-hydroxy-2-methyl-1H-indole.
Sources & evidence
- ORD record
- ord-6e404cbc910d4a8797bc75c23fba8e28
- Source dataset
- uspto-grants-2001_01
- Patent number
- US06175021B1
Reaction notes
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