1: 5,6,7,8-tetrahydro-2H-cycloheptapyrazol-4-one With potassium carbonate; p-methoxybenzyl chloride in acetonitrile T=60°C; 2 h; Inert atmosphere; 2: With copper(ll) bromide in ethyl acetate 1 h; RefluxInert atmosphere; 3: N-(2-Pyridinyl)thiourea Further stages;