Synonyms: (3aR,4R,6S,6aS)-4-(tert-butoxycarbonylaMino)-3-(pentan-3-yl)-4,5,6,6a-tetrahydro-3aH-cyclopenta[d]isoxazole-6-carboxylic acid;2-Methylpropan-2-aMine(3aR,4R,6S)-4-((tert-butoxycarbonyl)aMino)-3-(pentan-3-yl)-4,5,6,6a-tetrahydro-3aH-cyclopenta[d]isoxazole-6-carboxylate