A convenient route to the preparation of 4-methoxy-1-oxido-pyridine-2-methyl N-2-(4,4′-dimethoxytrityloxy)ethyl-N-thymin-1-yl-aminomethylphosphonate (1a, T∗) and the corresponding N4-benzoylcytosin-1-yl derivative 1b (C∗) is reported. These PPNA monomers proved to be suitable building blocks in a solid-support synthesis of the tetradecameric fragment (C∗T∗T∗T∗C∗T∗T∗T∗T∗C∗T∗C∗T∗)dT.
制备4-甲氧基-1-氧化
吡啶-2-甲基N -2-(4,4'-二甲氧基三苯甲氧基)乙基-N-胸腺
嘧啶-1-基-
氨基
甲基膦酸酯(1a,T ∗)和报道了相应的N 4-苯甲酰基
胞嘧啶-1-基衍
生物1b(C ∗)。这些P
PNA单体被证明是固相合成十四聚体片段的基础材料(C * T * T * T * T * C * T * T * T * T * C * T *C ∗ T ∗)dT。