1,3-dihydro-3-(4-piperidinyl)-imidazo[4,5-c]quinolin-2(2H)-one 、
1-[3,5-dibromo-N-[(phenoxy)cyanoiminomethyl]-D-tyrosyl]-4-(1-methyl-4-piperidinyl)piperazine 以31%的产率得到1-[3,5-dibromo-N-[[4-[1,3-dihydro-2(2H)-oxoimidazo[4,5-c]quinolin-3-yl]-1-piperidinyl]cyanoiminomethyl]-D-tyrosyl]-4-(1-methyl-4-piperidinyl)piperazine