N-tert-butyloxycarbonyl-4-(4-amino-5-chloro-2-methoxyphenylcarbonylaminomethyl)piperidine → 4-Amino-5-chloro-2-methoxy-N-(piperidin-4-ylmethyl)benzamide hydrochloride
Reaction equation
[NH2:1][C:2]1[C:24]([Cl:25])=[CH:23][C:5]([C:6]([NH:8][CH2:9][CH:10]2[CH2:15][CH2:14][N:13](C(OC(C)(C)C)=O)[CH2:12][CH2:11]2)=[O:7])=[C:4]([O:26][CH3:27])[CH:3]=1>Cl.O1CCOCC1>[ClH:25].[NH2:1][C:2]1[C:24]([Cl:25])=[CH:23][C:5]([C:6]([NH:8][CH2:9][CH:10]2[CH2:11][CH2:12][NH:13][CH2:14][CH2:15]2)=[O:7])=[C:4]([O:26][CH3:27])[CH:3]=1Participants
3
Procedure
4-amino-5-chloro-N-(1-tert-butoxycarbonylpiperidin-4-ylmethyl)-2-methoxybenzamide (18.9 g) was dissolved in 4N hydrochloric acid-dioxane solution (150 ml). The mixture was stood at room temperature for 2 hr and the precipitated crystals were collected by filtration to give 15.3 g of 4-amino-5-chloro-2-methoxy-N-(piperidin-4-ylmethyl)-benzamide hydrochloride.
Workup
- filtrationthe precipitated crystals were collected by filtration
Sources & evidence
- ORD record
- ord-f96ccd0cf55d4751aaf72ed8595b57ac
- Source dataset
- uspto-grants-1999_01
- Patent number
- US05864039
Reaction notes
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