(2S)-5-(((6R,7S)-4-(6-(Benzyloxy)-6-oxohexyl)-6,7,8a-trihydroxy-4,5,6,7,8,8a-hexahydroimidazo[4,5-b]azepin-2-yl)amino)-2-(((benzyloxy)carbonyl)amino)pentanoic Acid is an intermediate in synthesizing (6R,7R,8a-rac)-(5”-Desamino Glucosepane (D288468), a derivative of Glucosepane, which is a structurally complex protein posttranslational modification that is believed a exist in all living organisms. Research in humans suggests that glucosepane plays a critical role in the pathophysiology of both diabetes and human aging.