1 JON [(2~{S})-pyrrolidin-2-yl]methyl ~{N}-[(3~{S})-2,5-bis(oxidanylidene)pyrrolidin-3-yl]carbamate 1.000 2 JP5 (phenylmethyl) ~{N}-[(3~{S})-2,5-bis(oxidanylidene)pyrrolidin-3-yl]carbamate 0.842 3 JP8 [(2~{R})-pyrrolidin-2-yl]methyl ~{N}-[(3~{S})-2,6-bis(oxidanylidene)piperidin-3-yl]carbamate 0.842 4 JOQ [4-(aminomethyl)phenyl]methyl ~{N}-[(3~{S})-2,5-bis(oxidanylidene)pyrrolidin-3-yl]carbamate 0.762