potassium carbonate in N,N-dimethyl-formamide T=20 - 80°C;

1: 2-bromo-5-hydroxypyridine With sodium hydride in N,N-dimethyl-formamide 0.5 h; 2: 1-trans-IODO-4-CYCLOPENTYL in N,N-dimethyl-formamide T=120°C; 72 h;