Hydrogen Bromide → Hydrochloric Acid
Reaction equation
[CH2:1]([N:5]1[CH2:10][CH2:9][CH:8]([N:11]2[C:15](=[O:16])[O:14][C:13]([C:17]3[C:22]4[O:23][CH2:24][CH2:25][O:26][C:21]=4[C:20]([NH:27]C(=O)OCC4C=CC=CC=4)=[C:19]([Cl:38])[CH:18]=3)=[N:12]2)[CH2:7][CH2:6]1)[CH2:2][CH2:3][CH3:4].Br>C(O)C>[ClH:38].[NH2:27][C:20]1[C:21]2[O:26][CH2:25][CH2:24][O:23][C:22]=2[C:17]([C:13]2[O:14][C:15](=[O:16])[N:11]([CH:8]3[CH2:7][CH2:6][N:5]([CH2:1][CH2:2][CH2:3][CH3:4])[CH2:10][CH2:9]3)[N:12]=2)=[CH:18][C:19]=1[Cl:38].[ClH:38]Participants
5
Reactant 2
Product 2
Reagents, catalysts & solvents 1
Procedure
The preparation is carried out as described in Example 9.2, from phenylmethyl [8-[4-(1-butylpiperidin-4-yl)-5-oxo-4,5-dihydro-1,3,4-oxadiazol-2-yl]-6-chloro-2,3-dihydro-1,4-benzodioxin-5-yl]carbamate and hydrobromic acid, and the hydrochloride is formed by treatment with hydrochloric acid in ethanol. Melting point: 280-283° C.
Sources & evidence
- ORD record
- ord-4a18714bb39b42acbac174266fca01a7
- Source dataset
- uspto-grants-1999_07
- Patent number
- US05929089
Reaction notes
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