methyl 3,5-diamino-6-chloropyrazine-2-carbonylcarbamimidothioate hydroiodic acid salt 、 (R)-N-{5-[2-(11-aminoundecylamino)-1-hydroxyethyl]-2-hydroxyphenyl}formamide 在
N,N-二异丙基乙胺 作用下,
反应 3.5h,
以14%的产率得到(R)-3,5-diamino-6-chloro-N-(N-{11-[2-(3-formamido-4-hydroxyphenyl)-2-hydroxyethylamino]undecyl}carbamimidoyl)pyrazinecarboxamide