1-(2-Methoxyphenyl)piperazine → 1-{1-[1-(4-Choro-phenyl)-cyclopropylmethyl]-piperidin-3ylmethyl}-4-(2-methoxy-phenyl)-piperazine

To a solution of methanesulfonic acid 1-[1-(4-chloro-phenyl)-cyclopropylmethyl]-piperidin-3-ylmethyl ester (2.94 g, 8.20 mmol) in acetonitrile (40.0 mL) at room temperature was added 1-(2-methoxy-phenyl)-piperazine (1.58 g, 8.20 mmol) followed by potassium carbonate (13.35 g, 41.0 mmol). The reaction mixture was refluxed overnight. After cooling down to room temperature the reaction mixture was diluted with water and extracted with EtOAc (3×50 mL). The combined organic layers were dried over sodium sulfate and concentrated to yield a crude oil. The resulting residue was purified by silica gel chromatography (96:4 DCM: 2M NH3 in EtOH) to obtain the desired compound as an oil (2.04 g). 13C NMR (100 MHz, CDCl3) δ152.5, 143.9, 141.8, 131.5, 130.4, 128.2, 123.1, 121.3, 118.4, 111.5, 67.8, 63.0, 59.5, 55.6, 55.2, 54.2, 51.0, 33.5, 29.8, 25.2, 23.1, 13.4, 13.1.

1. temperatureThe reaction mixture was refluxed overnight
2. extractionextracted with EtOAc (3×50 mL)
3. dry with materialThe combined organic layers were dried over sodium sulfate
4. concentrationconcentrated
5. customto yield a crude oil
6. customThe resulting residue was purified by silica gel chromatography (96:4 DCM: 2M NH3 in EtOH)

ORDレコード

ord-48febb75d6d04fffb0f2a8595191a54c

出典データセット

uspto-grants-2004_03

DOI

10.6084/m9.figshare.5104873.v1

特許番号

US06713479B2