An <small>L</small>-alanine derivative that is the amide obtained by formal condensation of the carboxy group of <em>N</em>-[(3,5-difluorophenyl)acetyl]-<small>L</small>-alanine with the amino group of (3<i>S</i>)-3-amino-1-methyl-5-phenyl-1,3-dihydro-2<em>H</em>-1,4-benzodiazepin-2-one. An inhibitor of memapsin 2 (γ-secretase). ChEBI: Compound E is an L-alanine derivative that is the amide obtained by formal condensation of the carboxy group of N-[(3,5-difluorophenyl)acetyl]-L-alanine with the amino group of (3S)-3-amino-1-methyl-5-phenyl-1,3-dihydro-2H-1,4-benzodiazepin-2-one. An inhibitor of memapsin 2 (gamma-secretase). It has a role as an EC 3.4.23.46 (memapsin 2) inhibitor. It is a 1,4-benzodiazepinone, a L-alanine derivative and a difluorobenzene.