反应详情

wherein T7 and T8 are each independently O or S and T9 is H, amino, hydroxy, Cl, or Br. 8) B is thymine, adenine, uracil, a 5-halouracil, a 5-alkyluracil, guanine, cytosine, a 5-halocytosine, a 5-alkylcytosine, or 2,6-diaminopurine. 9) B is guanine, cytosine, uracil, or thymine. 10) B is adenine.