(3S,6R,9S,12R,15S,18R,21S,24R)-6,18-bis[[4-(chloromethyl)phenyl]methyl]-3,9,15,21-tetraisobutyl-4,10,12,16,22,24-hexamethyl-1,7,13,19-tetraoxa-4,10,16,22-tetrazacyclotetracosane-2,5,8,11,14,17,20,23-octaone 、
2-methoxy-5-(tributylstannyl)pyrazine 在
四(三苯基膦)钯 作用下,
以
1,4-二氧六环 为溶剂,
反应 5.0h,
生成 (3S,6R,9S,12R,15S,18R,21S,24R)-3,9,15,21-tetraisobutyl-6,18-bis(4-((5-methoxypyrazin-2-yl)methyl)benzyl)-4,10,12,16,22,24-hexamethyl-1,7,13,19-tetraoxa-4,10,16,22-tetraazacyclotetracosan-2,5,8,11,14,17,20,23-octaone