Compound 34. A highly potent inhibitor of gamma-secretase, Synonyms: (2S,3R)-3-(3,4-Difluorophenyl)-2-(4-fluorophenyl)-4-hydroxy-N-((3S)-2-oxo-5-phenyl-2,3-1H-benzo[e][1,4]diazepin-3-yl)butyramide], Molecular Formula: CG1H2GFGNGOG, Purity: G98% by NMR, 200ug.