2-(4-Fluoro-3-trifluoromethyl-phenylamino)-propionic acid 、
(S)-6-[3-(2,2-dimethoxy-ethylamino)-propyl]-6-aza-spiro[2.5]octan-4-ol 、 2-(4-fluoro-3-trifluoromethyl-phenylamino)-N-(2,2-dimethoxy-ethyl)-N-[3-((S)-4-hydroxy-6-aza-spiro[2.5]oct-6-yl)-propyl]-propionamide 在
4-(4-fluoro-3-trifluoromethyl-phenyl)-1-[3-((S)-4-hydroxy-6-aza-spiro[2.5]oct-6-yl)-propyl]-3-methyl-piperazin-2-one 作用下,
生成 (S)-4-(4-fluoro-3-trifluoromethyl-phenyl)-1-[3-((S)-4-hydroxy-6-aza-spiro[2.5]oct-6-yl)-propyl]-3-methyl-piperazin-2-one