Triethylamine → N-tert-butyloxycarbonyl-4-(4-amino-5-chloro-2-methoxyphenylcarbonylaminomethyl)piperidine

HRID 1506931Notes

Reaction equation

[NH2:1][C:2]1[C:10]([Cl:11])=[CH:9][C:5]([C:6]([OH:8])=O)=[C:4]([O:12][CH3:13])[CH:3]=1.[NH2:14][CH2:15][CH:16]1[CH2:21][CH2:20][N:19]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[CH2:18][CH2:17]1.C(N(CC)CC)C.Cl.CN(C)CCCN=C=NCC.ON1C2C=CC=CC=2N=N1>CN(C)C=O>[NH2:1][C:2]1[C:10]([Cl:11])=[CH:9][C:5]([C:6]([NH:14][CH2:15][CH:16]2[CH2:21][CH2:20][N:19]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[CH2:18][CH2:17]2)=[O:8])=[C:4]([O:12][CH3:13])[CH:3]=1

Participants

Conditions

Temperature: 0 °C

Procedure

4-amino-5-chloro-2-methoxybenzoic acid (compound of formula 9) (16.6 g, 82.28 mmol) was dissolved in dimethylformamide (166 mL) and the solution was cooled to 0° C. Then, tertiary butyl 4-(aminomethyl)piperidine-1-carboxylate (21.16 g, 98.74 mmol), triethylamine (11.56 mL, 246.84 mmol), N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (EDC, 20.51 g, 106.96 mmol), and 1-hydroxybenzotriazole (HOBT, 16.68 g, 123.42 mmol) were added thereto. The reaction mixture was warmed to room temperature, stirred for 4 hours, and extracted with ethyl acetate and water. The organic layer was dried over anhydrous magnesium sulfate and concentrated under reduced pressure to afford the title compound (31.4 g, 96%).

Workup

temperatureThe reaction mixture was warmed to room temperature
extractionextracted with ethyl acetate and water
dry with materialThe organic layer was dried over anhydrous magnesium sulfate
concentrationconcentrated under reduced pressure

Sources & evidence

ORD record: ord-2c15501962fc4cd3bf78660307a8a54c
Source dataset: uspto-grants-2015_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09221790B2

Reaction notes

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