(3S,6S)-3,6-diisobutylpiperazin-2-one 、
4-碘-N-(4-吡咯烷基-1-基-丁基)苯磺酰胺氢氯化物 、
( 3S,6S)-3,6-diiso-butyl-4-((1R,2R)-2-phenylcyclopropanecarbonyl)piperazin-2-one 以to furnish 287 (95 mg, 80% yield) as a white solid的产率得到(3S,6S)-4-(5-(3,5-difluorophenyl)isoxazole-3-carbonyl)-3,6-diisobutylpiperazin-2-one