Hydrochloric Acid → HCID 9905121, compound
Reaction equation
[NH2:1][C:2]1[CH:23]=[CH:22][CH:21]=[CH:20][C:3]=1[C:4]([NH:6][CH:7]1[CH2:12][CH2:11][N:10]([CH2:13][C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)[CH2:9][CH2:8]1)=[O:5].Cl.[CH:25](OC)(OC)OC>>[CH2:13]([N:10]1[CH2:9][CH2:8][CH:7]([N:6]2[C:4](=[O:5])[C:3]3[C:2](=[CH:23][CH:22]=[CH:21][CH:20]=3)[N:1]=[CH:25]2)[CH2:12][CH2:11]1)[C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=1Participants
4
Procedure
To a solution of 200 mg 2-amino-N-(1-benzyl-piperidin-4-yl)benzamide (from Step A) in 5 mL of trimethyl orthoformate was added 0.2 mL of concentrated HCl. After stinring at 85° C. for 14 hours, the reaction was cooled to room temperature. The reaction mixture was partitioned betweem EtOAc and aqueous sodium bicarbonate. Aqueous phase was extracted with EtOAc (3×). The combined organic phases were washed with brine and dried over anhydrous MgSO4. Concentration under reduced pressure afforded 120 mg of the title compound as a viscous oil.
Workup
- customThe reaction mixture was partitioned betweem EtOAc and aqueous sodium bicarbonate
- extractionAqueous phase was extracted with EtOAc (3×)
- washThe combined organic phases were washed with brine
- dry with materialdried over anhydrous MgSO4
- concentrationConcentration under reduced pressure
Sources & evidence
- ORD record
- ord-26c73784599b4199ae28501adce16a62
- Source dataset
- uspto-grants-2001_06
- Patent number
- US06248755B1
Reaction notes
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