4-amino-5-[bis(2-aminoethyl)amino]pentanecarboxylic acid 、
3-(benzyloxy)-1-methyl-4-(2-thioxothiazolidine-3-carbonyl)pyridine-2(1H)-one 以
二氯甲烷 为溶剂,
反应 72.0h,
以87%的产率得到5-[bis-(2-{[3-benzyloxy-1-methyl-2-oxo-1,2-dihydropyridine-4-carbonyl]amino}ethyl)amino]-4-{[3-benzyloxy-1-methyl-2-oxo-1,2-dihydropyridine-4-carbonyl]amino}pentanecarboxylic acid