5-<(N-acetylglycyl-α-methylalanyl)amino>pentylanthraquinone-2-carboxylate 以
乙腈 为溶剂,
以18%的产率得到N-(23-hydroxy-11,11-dimethyl-2,10,13-trioxo-3,15-dioxa-9,12-diazatetracyclo[14.10.2.017,22.024,28]octacosa-1(27),16(28),17,19,21,23,25-heptaen-14-yl)acetamide