Diisopropylethylamine → 1-(2,3-Dihydro-benzo[1,4]dioxin-6-yl)-2-[4-(4-methoxy-benzothiazole-2-carbonyl)-piperidin-1-yl]-ethanone

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Reaction Steps

A mixture of (4-methoxy-benzothiazol-2-yl)-piperidin-4-yl-methanone (333 mg, 1.2 mmol) and 2-chloro-1-(2,3-dihydro-benzo[1,4]dioxin-6-yl)-ethanone (256 mg, 1.2 mmol) in DMF (4 ml) was treated with DIPEA (199 ul, 1.2 mmol) and the mixture was stirred at RT overnight. The mixture was poured on water and extracted with EtOAc. The organic layers were dried over MgSO4 and concentrated. Chromatography on SiO2 (hex/EtOAc 1:1, EtOAc) and crystallisation from ether gave 350 mg (65%) of title compound as a yellowish solid.

Provenance & Evidence