1 C3T (3~{S},6~{S},7~{S},9~{a}~{S})-~{N}-[(4-~{tert}-butylphenyl)methyl]-7-(hydroxymethyl)-6-[[(2~{S})-2-(methylamino)butanoyl]amino]-5-oxidanylidene-1,2,3,6,7,8,9,9~{a}-octahydropyrrolo[1,2-a]azepine-3-carboxamide 1.000 2 C3K (3~{S},6~{S},7~{R},9~{a}~{S})-6-[[(2~{S})-2-(methylamino)propanoyl]amino]-5-oxidanylidene-~{N}-(phenylmethyl)-7-[(propanoylamino)methyl]-3,6,7,8,9,9~{a}-hexahydropyrrolo[1,2-a]azepine-3-carboxamide 0.725