三氟乙酸 、
14-[6-(Bis-tert-butoxycarbonylmethyl-amino)-hexyl]-6,7,9,10,13,14,15,16,18,19,21,22-dodecahydro-12H-5,8,11,17,20,23-hexaoxa-14-aza-benzocyclohenicosene-2,3-dicarboxylic acid dimethyl ester 反应 2.0h,
以0.44 g的产率得到14-[6-(bis-carboxymethylamino)hexyl]-6,7,9,10,13,14,15,16,18,19,21,22-dodecahydro-12H-5,8,11,17,20,23-hexaoxa-14-aza-benzocyclohenicosene-2,3-dicarboxylic acetic acid dimethylester ditrifluoroacetate