Patent ID: 6998398

Claim:
A pharmaceutically acceptable salt selected from the group consisting of the lithium, calcium, magnesium and zinc salts of 3-[[[1-[(2R) -2-(ethoxycarbonyl)-4-phenylbutyl]cyclopentyl]carbonyl]amino]-2,3,4,5-tetrahydro-2-oxo-(3S)-1H-1-benzazepine-1-acetic acid, and the calcium salt of 3-[[[1-[2-(ethoxycarbonyl)-4-(1-naphthalenyl)butyl]cyclopentyl]carbonyl]amino]-2,3,4,5-tetrahydro-oxo-,[S-(R*,S*)]-1H-1H-1-benzazepine-1-acetic acid.