Diphenyl Ether → Ethyl 4-[2-(8-chlorodibenz[b,f][1,4]oxazepin-10(11H)-yl)-3,4-dioxo-1-cyclobuten-1-yl]-1-phenyl-2-piperazinecarboxylate

Beteiligte Stoffe

Reaktionsschritte

A mixture of 8-chloro-dibenz[b,f][1,4]oxazepine (1.02 g) and the product of Example 3 (0.26 g) and diphenyl ether (3 mL) was heated to reflux for 1.75 hours. The mixture was rapidly filtered thourough a small column of silica gel and the filtrate was concentrated. The residue was purified by chromatography on silica gel to obtain the title compound (0.173 g).

Herkunft & Nachweise