{4-tert-butoxycarbonylmethyl-7-[3-nitro-5-(4,7,10-tris-tert-butoxycarbonylmethyl-1,4,7,10-tetraaza-cyclododec-1-ylmethyl)-benzyl]-1,4,7,10-tetraaza-cyclododec-1-yl}-acetic acid tert-butyl ester 在
palladium 10% on activated carbon 、
一水合肼 作用下,
以
甲醇 为溶剂,
反应 10.0h,
以75%的产率得到{4-tert-butoxycarbonylmethyl-7-[3-amino-5-(4,7,10-tris-tert-butoxycarbonylmethyl-1,4,7,10tetraaza-cyclododec-1-ylmethyl)-benzyl]-1,4,7,10-tetraaza-cyclododec-1-yl}-acetic acid tert-butyl esterpropionic acid tert-butyl ester