Synthesis of deuterium-labelled 6-[5-(4-amidinophenyl)furan-2-yl]nicotinamidine andN-alkoxy-6-{5-[4-(N-alkoxyamidino)phenyl]- furan-2-yl}-nicotinamidines
作者:Mohamed A. Ismail、David W. Boykin
DOI:10.1002/jlcr.817
日期:2004.3.30
6-[5-(4-Amidinophenyl)furan-2-yl]nicotinamidine-d4 (5) was synthesized from 6-[5-(4-cyanophenyl)furan-2-yl]nicotinonitrile-d4 (3), through the bis-O-acetoxy-amidoxime followed by hydrogenation. Compound 3 was prepared from 6-(furan-2-yl)-nicotinonitrile by a Heck coupling reaction with 4-bromobenzonitrile-d4, a product of selective cyanation reaction of 1,4-dibromobenzene-d4 with Cu(1)CN. Deuterium-labelled
6-[5-(4-脒基苯基)呋喃-2-基]烟脒-d4(5)由6-[5-(4-氰基苯基)呋喃-2-基]烟腈-d4(3)合成,通过双-O-乙酰氧基-脒肟,然后氢化。化合物 3 由 6-(呋喃-2-基)-烟腈通过与 4-溴苄腈-d4 的 Heck 偶联反应制备,4-溴苄腈-d4 是 1,4-二溴苯-d4 与 Cu(1)CN 的选择性氰化反应产物。氘标记的 N-甲氧基-6-5-[4-(N-甲氧基-脒基苯基]-呋喃-2-基}-烟脒是通过在氢氧化钠水溶液中用硫酸二甲酯-d6 甲基化它们各自的脒脒来制备的。版权所有 © 2004 John Wiley & Sons, Ltd.