5,7-dihydro-5-(4-piperidinyl)-dibenzo[d,f][1,3]diazepin-6-one 、
1-[4-amino-3,5-dibromo-N-[(phenoxy)cyanoiminomethyl]-D-phenylalanyl]-4-(1-piperidinyl)-piperidine 以25%的产率得到1-[4-amino-3,5-dibromo-N-[[4-(5,7-dihydro-6-oxodibenzo[d,f][1,3]diazepin-5-yl)-1-piperidinyl]cyanoiminomethyl]-D-phenylalanyl]-4-(1-piperidinyl)-piperidine