(3S,6S)-3-isobutyl-6-thiophen-3-yl-piperazin-2-one 、
(1R,2R)-2-(4-fluorophenyl)cyclopropanecarboxylic acid 、
(3S,6S)-4-cinnamoyl-3,6-diisobutylpiperazin-2-one 以to furnish product 445 (20 mg, 33.1% yield) as a white solid的产率得到(3S,6S)-4-((1R,2R)-2-(4-fluorophenyl)cyclopropanecarbonyl)-3-isobutyl-6-(thiophen-3-yl)piperazin-2-one