5,11,17,23-tetrakis(dimethylaminomethyl)-2,8,14,20-tetrahexylpentacyclo[19.3.1.1
3,7.1
9,13.1
15,19]octacosa-1(25),3,5,7(28),9,11,13(27),15,17,19(26),21,23-dodecaene-6,10,12,16,18,22,24,4-tetra(dimethylphosphoramidite) 在
sulfur 作用下,
以
苯 为溶剂,
反应 8.0h,
以97%的产率得到