Substituted 2', 3'-dideoxy-5-trifluoromethylur idines, processes for their preparation and their use in medicaments.
取代的2'，3'-二脱氧-5-三氟甲基尿嘧啶核苷类，它们的制备方法以及它们在医药方面的应用。
2
One version of the dideoxy sequencing method can be used to sequence the 5'ends of RNA molecules by 'primer extension'.
一种形式的双脱氧序列测定法是通过引子的延长来测定RNA分子5’ 末端的序列。
3
The result of the nucleotide sequence determined by dideoxy chain-termination method indicated that 5'-terminal nucleotide sequence of the amplified NS1 fragment was not …