(3S,6S)-3,6-diisobutyl-4-(4-phenoxybenzoyl)piperazin-2-one 、
(3S,6S)-3,6-diisobutylpiperazin-2-one 、
4-fluoro-5-(4-fluorophenyl)isoxazole-3-carboxylic acid 以to give the product 379 (35.2 mg, 38% yield) as a white solid的产率得到(3S,6S)-4-(4-fluoro-5-(4-fluorophenyl)isoxazole-3-carbonyl)-3,6-diisobutylpiperazin-2-one