3'-(4-fluoro-phenyl)-3,4,5,6-tetrahydro-2H-[1,2']bipyrazine 、
1-(3-hydroxy-propyl)-1H-pyrazole-4-carbaldehyde 、
三乙酰氧基硼氢化钠 、
1,2-二氯乙烷 在
乙酸乙酯 、
甲醇 作用下,
反应 18.0h,
以ethyl acetate then 10:90 methanol:ethyl acetate to 20:80 methanol:ethyl acetate), to give the free base of the title compound (103 mg, 45%)的产率得到3-{4-[3'-(4-Fluoro-phenyl)-2,3,5,6-tetrahydro-[1,2']bipyrazinyl-4-ylmethyl]-pyrazol-1-yl}-propan-1-ol hydrochloride