A compound selected from the group consisting of (S)-N-[(S)-5-[2-(2-methoxy-ethoxy)-acetyl]-1-(2-methyl-naphthalen-1-ylmethyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-3-yl]-2-methylamino-propionamide hydrochloride; (S)-N-[(S)-5-(2-Carbamoyl-acetyl)-1-(2-methyl-naphthalen-1-ylmethyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-3-yl]-2-methylamino-propionamide hydrochloride; (S)-N-[(S)-5-{2-[2-(2-Methoxy-ethoxy)-ethoxy]-acetyl}-1-(2-methyl-naphthalen-1-ylmethyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-3-yl]-2-methylamino-propionamide hydrochloride; methyl 6-((S)-3-((S)-2-(methylamino)propanamido)-5-((2-methylnaphthalen-1-yl)methyl)-4-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-1-yl)-6-oxohexanoate hydrochloride; (S)-N-((S)-1-((6-bromo-2-methoxynaphthalen-1-yl)methyl)-5-(2-cyclohexylacetyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-3-yl)-2-(methylamino)propanamide hydrochloride; (S)-N-[(S)-5-(2-Adamantan-1-yl-acetyl)-1-(6-bromo-2-methoxy-naphthalen-1-ylmethyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-3-yl]-2-methylamino-propionamide hydrochloride; methyl S-[[ -1-[3-(9H-fluoren-9-ylmethoxycarbonylamino)propanoyl]-3-[[ -2-(methylamino)propanoyl]amino]-4-oxo-2,3-dihydro-1,5-benzodiazepin-5-yl]methyl]-6-methoxy-naphthalene-2-carboxylate hydrochloride; S-[(S)-5-[4-(9H-Fluoren-9-ylmethoxycarbonylamino)-butyryl]-3-((S)-2-methylamino-propionylamino)-2-oxo-2,3,4,5-tetrahydro-benzo[b] diazepin-1-ylmethyl]-6-methoxy-naphthalene-2-carboxylic acid methyl ester hydrochloride; (S)-N-[(S)-5-(2-Cyclohexyl-acetyl)-1-(2-methyl-naphthalen-1-ylmethyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-3-yl]-2-methylamino-propionamide hydrochloride; and (S)-N-[(S)-5-[2-(2-methoxy-ethoxy)-acetyl]-1-(2-methyl-naphthalen-1-ylmethyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-3-yl]-2-methylamino-propionamide hydrochloride; (S)-N-[(S)-5-(2-Carbamoyl-acetyl)-1-(2-methyl-naphthalen-1-ylmethyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-3-yl]-2-methylamino-propionamide hydrochloride; (S)-N-[(S)-5-{2-[2-(2-Methoxy-ethoxy)-ethoxy]-acetyl}-1-(2-methyl-naphthalen-1-ylmethyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-3-yl]-2-methylamino-propionamide hydrochloride; methyl 6-((S)-3-((S)-2-(methylamino)propanamido)-5-((2-methylnaphthalen-1-yl)methyl)-4-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-1-yl)-6-oxohexanoate hydrochloride; (S)-N-((S)-1-((6-bromo-2-methoxynaphthalen-1-yl)methyl)-5-(2-cyclohexylacetyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-3-yl)-2-(methylamino)propanamide hydrochloride; (S)-N-[(S)-5-(2-Adamantan-1-yl-acetyl)-1-(6-bromo-2-methoxy-naphthalen-1-ylmethyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-3-yl]-2-methylamino-propionamide hydrochloride; methyl S-[[ -1-[3-(9H-fluoren-9-ylmethoxycarbonylamino)propanoyl]-3-[[ -2-(methylamino)propanoyl]amino]-4-oxo-2,3-dihydro-1,5-benzodiazepin-5-yl]methyl]-6-methoxy-naphthalene-2-carboxylate hydrochloride; S-[(S)-5-[4-(9H-Fluoren-9-ylmethoxycarbonylamino)-butyryl]-3-((S)-2-methylamino-propionylamino)-2-oxo-2,3,4,5-tetrahydro-benzo[b] diazepin-1-ylmethyl]-6-methoxy-naphthalene-2-carboxylic acid methyl ester hydrochloride; (S)-N-[(S)-5-(2-Cyclohexyl-acetyl)-1-(2-methyl-naphthalen-1-ylmethyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b] diazepin-3-yl]-2-methylamino-propionamide hydrochloride; and <EOS>